<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" media="screen" href="/~d/styles/atom10full.xsl"?><?xml-stylesheet type="text/css" media="screen" href="http://feeds.feedburner.com/~d/styles/itemcontent.css"?><feed xmlns="http://www.w3.org/2005/Atom" xmlns:openSearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:georss="http://www.georss.org/georss" xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr="http://purl.org/syndication/thread/1.0" xmlns:feedburner="http://rssnamespace.org/feedburner/ext/1.0" gd:etag="W/&quot;CkMBRHkzeSp7ImA9WhRUF0o.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246</id><updated>2012-01-28T18:07:35.781+01:00</updated><category term="Enantiophoenix" /><category term="Maniraptora" /><category term="Therizinosauria" /><category term="Intervista" /><category term="Triassico Medio" /><category term="Giurassico Inferiore" /><category term="Antartide" /><category term="Sondaggio" /><category term="Asia" /><category term="Carnevale della Biodiversità" /><category term="Oviraptorosauria" /><category term="Madagascar" /><category term="Tyrannosauroidea" /><category term="Deinonychosauria" /><category term="Carnosauria" /><category term="Europa Occidentale" /><category term="Kemkemia" /><category term="Australia" /><category term="BAND" /><category term="Avialae" /><category term="Paleoarte" /><category term="Coelurosauria" /><category term="Megalosauroidea" /><category term="PaleoQuiz" /><category term="Africa" /><category term="Ornithomimosauria" /><category term="Creazionismo" /><category term="Incertae sedis" /><category term="Alvarezsauridae" /><category term="Isole Britanniche" /><category term="Terra Nova è già Vecchia" /><category term="India" /><category term="Europa Orientale" /><category term="Ipotesi Filogenetiche" /><category term="Fanta-theropodi" /><category term="Dinosauromorpha basali" /><category term="Cenozoico" /><category term="Cretacico Inferiore" /><category term="Triassico Superiore" /><category term="miscellanea" /><category term="Neptunidraco" /><category term="Nordamerica" /><category term="Giurassico Superiore" /><category term="Theropoda basali" /><category term="Crurotarsi" /><category term="Billy e il Clonesauro" /><category term="Sudamerica" /><category term="Miti" /><category term="Megamatrice" /><category term="Dinosauria non Theropoda" /><category term="Ceratosauria" /><category term="Frivolo" /><category term="Giurassico Medio" /><category term="Tetanurae" /><category term="Cretacico Superiore" /><category term="Cladistica per Principianti" /><category term="recensioni" /><category term="Italia" /><title>Theropoda</title><subtitle type="html" /><link rel="http://schemas.google.com/g/2005#feed" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/posts/default" /><link rel="alternate" type="text/html" href="http://theropoda.blogspot.com/" /><link rel="next" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default?start-index=26&amp;max-results=25&amp;redirect=false&amp;v=2" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><generator version="7.00" uri="http://www.blogger.com">Blogger</generator><openSearch:totalResults>1043</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="self" type="application/atom+xml" href="http://feeds.feedburner.com/blogspot/aJKG" /><feedburner:info uri="blogspot/ajkg" /><atom10:link xmlns:atom10="http://www.w3.org/2005/Atom" rel="hub" href="http://pubsubhubbub.appspot.com/" /><entry gd:etag="W/&quot;DEUNQ3w5fSp7ImA9WhRUFks.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-6255850000693075569</id><published>2012-01-27T13:08:00.002+01:00</published><updated>2012-01-27T13:11:32.225+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2012-01-27T13:11:32.225+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Dinosauria non Theropoda" /><title>Impegni e nuovi studi</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/6255850000693075569/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2012/01/impegni-e-nuovi-studi.html#comment-form" title="2 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6255850000693075569?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6255850000693075569?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/VsljbhyUqSQ/impegni-e-nuovi-studi.html" title="Impegni e nuovi studi" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://4.bp.blogspot.com/-71iP2zyXqko/TyKS1RhyljI/AAAAAAAADdQ/pGL41bEbFE4/s72-c/sauropode.jpg" height="72" width="72" /><thr:total>2</thr:total><content type="html">




In questo periodo ho poco tempo per scrivere post. Ho appena terminato la preparazione dell'articolo sul cranio fossile che vi mostrai un mese fa. E da martedì sto preparando tutto il necessario per la descrizione del materiale della foto qui sopra.

I più attenti hanno riconosciuto i resti come quelli di un sauropode. Si tratta del mio primo studio in quel clade di saurischi. Lo studio è 
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Vi segnalo il sito di Geomodel per avere tutte le informazioni sulla prossima edizione di Dinosauri in Carne e Ossa, dal 1 marzo al 2 settembre presso il Museo di Storia Naturale di Firenze.

Io sono stato parte integrante del team della precedente edizione, a Pavia, mentre in questa nuova avventura fiorentina mi limiterò a qualche visita, sicuramente per l'inaugurazione.

Non mancate! 
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Un adulto di Strathiotosuchus attacca un giovane titanosauro (Opera di M. Oliveira)


Per molti, gli spinosauridi sono theropodi che imitano i coccodrilli (il nome stesso "Suchomimus" significa ciò).

Dato che per il grande pubblico i theropodi sono molto più famosi dei coccodrilli, temo che pochi dei miei lettori sanno che esistono dei coccodrilli che imitano i theropodi, dei veri e propri "
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Cinto pettorale e braccio di Majungasaurus (modificato da Burch e Carrano 2012)


Burch e Carrano (2012) descrivono gli ultimi resti che mancavano per completare lo scheletro di Majungasaurus crenatissimus: l'arto anteriore. Ciò rende Majungasaurus uno dei theropodi meglio conosciuti, assieme ad Allosaurus e Tyrannosaurus.

Tra i resti, per la prima volta in Ceratosauria, la furcula (
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&lt;a href="http://feedads.g.doubleclick.net/~a/0lwwEpbi6h7I4EQi3BqjXNwKmgM/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/0lwwEpbi6h7I4EQi3BqjXNwKmgM/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/s2PVPdPfQ5Y" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2012/01/coming-soon-da-una-mano-majungasaurus.html</feedburner:origLink></entry><entry gd:etag="W/&quot;CkENRXc8fip7ImA9WhRVEU4.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-9165111296537505345</id><published>2012-01-09T18:06:00.003+01:00</published><updated>2012-01-09T18:38:14.976+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2012-01-09T18:38:14.976+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Nordamerica" /><category scheme="http://www.blogger.com/atom/ns#" term="Dinosauria non Theropoda" /><category scheme="http://www.blogger.com/atom/ns#" term="Giurassico Superiore" /><title>Amphicoelias fragillimus è un Rebbachisauridae?</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/9165111296537505345/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2012/01/amphicoelias-fragillimus-e-un.html#comment-form" title="8 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/9165111296537505345?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/9165111296537505345?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/vayFbdlryJo/amphicoelias-fragillimus-e-un.html" title="Amphicoelias fragillimus è un Rebbachisauridae?" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://4.bp.blogspot.com/-ZSibnw8iM80/Twsd-hpmCcI/AAAAAAAADbU/9EDg-09QX_8/s72-c/afragillimus.jpg" height="72" width="72" /><thr:total>8</thr:total><content type="html">
Amphicoelias fragillimus è uno dei dinosauri più enigmatici e controversi della storia.

Questo taxon, basato su un singolo arco neurale di una dorsale di un enorme sauropode (Cope 1878) andato perduto, viene citato sovente come il potenziale dinosauro massimo. Io stesso non ho resistito in passato a tentare di stimare le dimensioni di questo sauropode, che secondo Carpenter (2006) avrebbe 
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Il 2012 non sarà la fine del mondo. Non occorre un esperto in culture precolombiane, un astrofisico o un veggente per dire ciò. Basta il buon senso. E anche se mi sbagliassi, cosa che dubito altamente, nessuno resterebbe qui a farmi la paternale...

Dal canto mio, il 2012 sarà un anno molto avvincente dal punto di vista delle mie ricerche.

A metà dell'anno uscirà un articolo di cui sono 
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Perdonerete lo svergognato auto-riferimento.

Per coloro che fossero interessati a leggere il mio primo romanzo (nel quale i theropodi non ci sono... almeno esplicitamente), vi suggerisco di leggere il nuovo post Ultrazionale, o visitare direttamente la pagina di Amazon.
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Esiste una ricca tradizione alla quale io cerco di non aggregarmi, che chiamo "paleontologia top-down" la quale parte da un'idea (indipendentemente dal fatto che abbia evidenze a suo sostegno) e scende nella realtà per cercare prove a suo sostegno. 

Esempi di questa concezione paleontologica sono tutte le ipotesi ammissibili ma non testabili sui dinosauri, ad esempio in che modo si 
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Dentale olotipico di Labrosaurus ferox (Marsh 1884)


La perdita parziale o totale della dentatura è un fenomeno evolutosi numerose volte in Theropoda, in particolare in Maniraptoriformes. Tuttavia, non sempre l'assenza di denti implica fenomeni tanto ampi. Il primo caso documentato di tale fenomeno nei theropodi risale al 1884, ed è poco noto, data la sua bizzarria. Infatti, si tratta di un 
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Confrontate questi 4 insiemi:



(uomo)

(gatto, lince, tigre, leone, giaguaro,
leopardo)

(cavallo, asino, zebra)

(mucca, antilope, gazzella, orice,
bufalo, cudu, pecora, stambecco, muflone, alcelafo, gnu)



A parte il fatto che tutti e 4
contengono mammiferi euteri, cosa altro li accomunerebbe? Niente:
essi differiscono per numero di specie, dimensioni, ecologia,
abitudini. Eppure, nella 
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&lt;a href="http://feedads.g.doubleclick.net/~a/w8-UzBhq5iD5GzCAgIaVia3FoGQ/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/w8-UzBhq5iD5GzCAgIaVia3FoGQ/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/keTsp51xYsc" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2012/01/dromaeosauridae-e-una-classe-o-una.html</feedburner:origLink></entry><entry gd:etag="W/&quot;Ck4AQnw-eip7ImA9WhRWFU0.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-2850465398310717936</id><published>2012-01-02T11:34:00.001+01:00</published><updated>2012-01-02T11:42:23.252+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2012-01-02T11:42:23.252+01:00</app:edited><title>Theropoda Blog 2011 - In breve</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/2850465398310717936/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2012/01/theropoda-blog-2011-in-breve.html#comment-form" title="0 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/2850465398310717936?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/2850465398310717936?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/kVss02KIq9g/theropoda-blog-2011-in-breve.html" title="Theropoda Blog 2011 - In breve" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><thr:total>0</thr:total><content type="html">
Nel 2011, Theropoda.blogspot ha ricevuto 369103 visite.

Il mese con la maggiore affluenza è stato gennaio, seguito da ottobre; il minore febbraio (ciò probabilmente perché è il mese più corto).

I post che hanno riscosso il maggior successo tra i visitatori sono stati:

III posto: il primo post della serie su MPM 2594, un esemplare di Carcharodontosauridae che è stato il mio principale studio 
&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/E0_jYILWfem7EqI-o8kCWOosFX0/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/E0_jYILWfem7EqI-o8kCWOosFX0/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/E0_jYILWfem7EqI-o8kCWOosFX0/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/E0_jYILWfem7EqI-o8kCWOosFX0/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/kVss02KIq9g" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2012/01/theropoda-blog-2011-in-breve.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkEAQH4_fSp7ImA9WhRWEkk.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-1568706114875706733</id><published>2011-12-30T13:37:00.000+01:00</published><updated>2011-12-30T13:37:21.045+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-30T13:37:21.045+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Cretacico Inferiore" /><category scheme="http://www.blogger.com/atom/ns#" term="Avialae" /><category scheme="http://www.blogger.com/atom/ns#" term="Asia" /><title>L'elusivo Gracilornis</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/1568706114875706733/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/lelusivo-gracilornis.html#comment-form" title="0 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/1568706114875706733?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/1568706114875706733?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/GhUuHZ1Hb1E/lelusivo-gracilornis.html" title="L'elusivo Gracilornis" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://2.bp.blogspot.com/-vE9NnQxuE8A/Tv2waYuRExI/AAAAAAAADac/VBvqxISStRA/s72-c/gracilornis.jpg" height="72" width="72" /><thr:total>0</thr:total><content type="html">



Nel precedente post ho menzionato i taxa theropodi mesozoici istituiti nel 2011. Scopro oggi che mancava un taxon all'appello, descritto nel 2011. Il motivo è che esso è pubblicato in una rivista scientifica non molto nota.

Li e Hou (2011) descrivono uno scheletro completo di un enantiornite dalla Formazione Jufotang della Cina ed istituiscono Gracilornis jiufotangensis. Dato che ad 
&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/vfPTksLkRSovDcsOAtVS4M3EWo4/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/vfPTksLkRSovDcsOAtVS4M3EWo4/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/vfPTksLkRSovDcsOAtVS4M3EWo4/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/vfPTksLkRSovDcsOAtVS4M3EWo4/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/GhUuHZ1Hb1E" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/lelusivo-gracilornis.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkEMRHs8eCp7ImA9WhRWEkk.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-6923703974719876994</id><published>2011-12-29T10:31:00.001+01:00</published><updated>2011-12-30T13:38:05.570+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-30T13:38:05.570+01:00</app:edited><title>I Theropodi del 2011</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/6923703974719876994/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/i-theropodi-del-2011.html#comment-form" title="4 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6923703974719876994?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6923703974719876994?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/5wgPGp6XNLk/i-theropodi-del-2011.html" title="I Theropodi del 2011" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><thr:total>4</thr:total><content type="html">L'anno si avvia alla conclusione, il contatore delle visite supera quota 700.000, ed è tempo di bilanci.
Confermando il trend degli anni precedenti, anche il 2011 è stato ricco di nuovi theropodi mesozoici. Theropoda non ha mai mancato di segnalarveli, presentarveli e discuterli.
Ecco un breve riassunto:

(NOTA BENE: in questo post non parlerò dei taxa "in press" ma solo di quelli pubblicati 
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&lt;a href="http://feedads.g.doubleclick.net/~a/1-UEcq2_79QVsjQnuHEKDypx5Z4/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/1-UEcq2_79QVsjQnuHEKDypx5Z4/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/5wgPGp6XNLk" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/i-theropodi-del-2011.html</feedburner:origLink></entry><entry gd:etag="W/&quot;DUIAQXg7eip7ImA9WhRXF0s.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-3838982093967386540</id><published>2011-12-24T23:59:00.003+01:00</published><updated>2011-12-24T23:59:00.602+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-24T23:59:00.602+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Frivolo" /><category scheme="http://www.blogger.com/atom/ns#" term="Megamatrice" /><title>Buon Saturnalia da Theropoda!</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/3838982093967386540/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/buon-saturnalia-da-theropoda.html#comment-form" title="0 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/3838982093967386540?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/3838982093967386540?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/eZjAR6A3aY4/buon-saturnalia-da-theropoda.html" title="Buon Saturnalia da Theropoda!" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://1.bp.blogspot.com/-_JBDFjKVQRM/TvIrb-bBt4I/AAAAAAAADaE/ZEzlT54iJ0Q/s72-c/Cladogramma+festivo.jpg" height="72" width="72" /><thr:total>0</thr:total><content type="html">

L'Albero di Natale è superato: arriva l'Albero di Theropoda!


Anche se non si vede, Saturnalia è presente nell'albero, pressapoco all'altezza del pallino rosso in basso a destra.
&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/ZmC7x91Pd1vNWqrCLoMD0a2_98E/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/ZmC7x91Pd1vNWqrCLoMD0a2_98E/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/ZmC7x91Pd1vNWqrCLoMD0a2_98E/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/ZmC7x91Pd1vNWqrCLoMD0a2_98E/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/eZjAR6A3aY4" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/buon-saturnalia-da-theropoda.html</feedburner:origLink></entry><entry gd:etag="W/&quot;AkQASHg7eyp7ImA9WhRXFko.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-7842739887731926411</id><published>2011-12-23T23:12:00.000+01:00</published><updated>2011-12-23T23:12:29.603+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-23T23:12:29.603+01:00</app:edited><title>Impegnatissimo...</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/7842739887731926411/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/impegnatissimo.html#comment-form" title="2 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/7842739887731926411?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/7842739887731926411?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/0SezCwXXhO8/impegnatissimo.html" title="Impegnatissimo..." /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://3.bp.blogspot.com/-H_SdHWNgH7s/TvT8NrlVCGI/AAAAAAAADaQ/qAu6suQASVA/s72-c/In+prep.jpg" height="72" width="72" /><thr:total>2</thr:total><content type="html">



In questi giorni di fine anno, il tempo (e le energie) per i post sono dirottati provvisoriamente sulle mie ricerche in preparazione. Qui sopra una di queste in tutta la sua spettacolarità. 

E non è la sola.

Abbiate pazienza e tutto sarà rivelato.

Ovviamente, su Theropoda!
&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/X5FJd7Y2VO7yJxN2An0d6fv0VZw/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/X5FJd7Y2VO7yJxN2An0d6fv0VZw/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/X5FJd7Y2VO7yJxN2An0d6fv0VZw/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/X5FJd7Y2VO7yJxN2An0d6fv0VZw/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/0SezCwXXhO8" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/impegnatissimo.html</feedburner:origLink></entry><entry gd:etag="W/&quot;DUIERX4-eip7ImA9WhRXE0U.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-4582427262974485973</id><published>2011-12-20T13:14:00.004+01:00</published><updated>2011-12-20T14:25:04.052+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-20T14:25:04.052+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Alvarezsauridae" /><category scheme="http://www.blogger.com/atom/ns#" term="Sudamerica" /><category scheme="http://www.blogger.com/atom/ns#" term="Cretacico Superiore" /><title>Bonapartenykus e le prime uova di Alvarezsauro</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/4582427262974485973/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/bonapartenykus-e-le-prime-uova-di.html#comment-form" title="5 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/4582427262974485973?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/4582427262974485973?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/JOS8Xh44uS8/bonapartenykus-e-le-prime-uova-di.html" title="Bonapartenykus e le prime uova di Alvarezsauro" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><thr:total>5</thr:total><content type="html">

Diagramma dell'olotipo di Bonapartenykus unicus in situ (Agnolin et al. in press)


Nel 2009, segnalai la scoperta di resti alverzsauridi dal Cretacico Terminale della Patagonia.

Resti coevi a quelli appena menzionati sono stati scoperti nella medesime formazioni, questa volta diagnostici a livello di specie. Con piacere, essi confermano ciò che dissi allora sulla base dei primi resti.


&lt;p&gt;&lt;a href="http://feedads.g.doubleclick.net/~a/Xwd0T4Rjp9r_I6RSCBy32b12src/0/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/Xwd0T4Rjp9r_I6RSCBy32b12src/0/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href="http://feedads.g.doubleclick.net/~a/Xwd0T4Rjp9r_I6RSCBy32b12src/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/Xwd0T4Rjp9r_I6RSCBy32b12src/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/JOS8Xh44uS8" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/bonapartenykus-e-le-prime-uova-di.html</feedburner:origLink></entry><entry gd:etag="W/&quot;CkABSHY4fip7ImA9WhRXEkk.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-3601649665157206067</id><published>2011-12-18T17:10:00.004+01:00</published><updated>2011-12-18T21:39:19.836+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-18T21:39:19.836+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Cretacico Inferiore" /><category scheme="http://www.blogger.com/atom/ns#" term="Nordamerica" /><category scheme="http://www.blogger.com/atom/ns#" term="Miti" /><category scheme="http://www.blogger.com/atom/ns#" term="Deinonychosauria" /><title>Mai più a caccia di Tenontosaurus (con un'aggiunta)</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/3601649665157206067/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/mai-piu-caccia-di-tenontosaurus.html#comment-form" title="25 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/3601649665157206067?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/3601649665157206067?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/6LEGKaFMXNk/mai-piu-caccia-di-tenontosaurus.html" title="Mai più a caccia di Tenontosaurus (con un'aggiunta)" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="http://1.bp.blogspot.com/-GElJ5UmPtFE/Tu5OYCyCedI/AAAAAAAADZ8/vWHqFyMxx6U/s72-c/deinonychus+quarry.jpg" height="72" width="72" /><thr:total>25</thr:total><content type="html">

Un mito elevato al quadrato - Artwork by Michael Skrepnick (ucmp.berkeley.edu)


Le riflessioni che il modello di Fowler et al. (2011) mi hanno indotto sono andate ben oltre i limiti di applicazione del modello stesso. 

Rileggendo uno dei miei post preferiti (nel senso che mi piace il tema e come lo resi), mi sono accorto che i pregiudizi, per quanto cerchiamo di superarli, siano difficili da 
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&lt;a href="http://feedads.g.doubleclick.net/~a/C6wUJjzNTJJMXrkvwl7-DwINZrU/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/C6wUJjzNTJJMXrkvwl7-DwINZrU/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/6LEGKaFMXNk" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/mai-piu-caccia-di-tenontosaurus.html</feedburner:origLink></entry><entry gd:etag="W/&quot;Ck8FQ3Y7eyp7ImA9WhRXEEo.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-399254306240793847</id><published>2011-12-16T22:26:00.001+01:00</published><updated>2011-12-16T22:26:52.803+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-16T22:26:52.803+01:00</app:edited><title>Coming Soon: Le prime uova di Alvarezsauridae!</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/399254306240793847/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/coming-soon-le-prime-uova-di.html#comment-form" title="1 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/399254306240793847?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/399254306240793847?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/kXmb6TCBbQ8/coming-soon-le-prime-uova-di.html" title="Coming Soon: Le prime uova di Alvarezsauridae!" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><thr:total>1</thr:total><content type="html">
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Balaur, dal Cretacico Superiore rumeno. In questo post soffermiamoci sul piede


Questo post è germinato nella mia mente proprio mentre leggevo il nuovo articolo di Fowler et al. (2011).

Mentre leggevo le caratteristiche del piede nei Dromaeosauridae elencate nello studio a sostegno di un comportamento di contenimento della preda "allìaccipitride", una vocina nel mio cervello ripeteva: "Balaur
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&lt;a href="http://feedads.g.doubleclick.net/~a/jDwnNtbc23lWxTTZpxTvTdscEmE/1/da"&gt;&lt;img src="http://feedads.g.doubleclick.net/~a/jDwnNtbc23lWxTTZpxTvTdscEmE/1/di" border="0" ismap="true"&gt;&lt;/img&gt;&lt;/a&gt;&lt;/p&gt;&lt;img src="http://feeds.feedburner.com/~r/blogspot/aJKG/~4/D1HB71i24AQ" height="1" width="1"/&gt;</content><feedburner:origLink>http://theropoda.blogspot.com/2011/12/coming-soon-extinction-of-dodoraptor.html</feedburner:origLink></entry><entry gd:etag="W/&quot;CUUEQH09cCp7ImA9WhRQGUs.&quot;"><id>tag:blogger.com,1999:blog-2156944512466583246.post-6420032247497066441</id><published>2011-12-15T11:56:00.004+01:00</published><updated>2011-12-15T16:33:21.368+01:00</updated><app:edited xmlns:app="http://www.w3.org/2007/app">2011-12-15T16:33:21.368+01:00</app:edited><category scheme="http://www.blogger.com/atom/ns#" term="Avialae" /><category scheme="http://www.blogger.com/atom/ns#" term="Deinonychosauria" /><title>De Raptoribus (Fowler et al. 2011)</title><link rel="replies" type="application/atom+xml" href="http://theropoda.blogspot.com/feeds/6420032247497066441/comments/default" title="Commenti sul post" /><link rel="replies" type="text/html" href="http://theropoda.blogspot.com/2011/12/de-raptoribus-fowler-et-al-2011.html#comment-form" title="13 Commenti" /><link rel="edit" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6420032247497066441?v=2" /><link rel="self" type="application/atom+xml" href="http://www.blogger.com/feeds/2156944512466583246/posts/default/6420032247497066441?v=2" /><link rel="alternate" type="text/html" href="http://feedproxy.google.com/~r/blogspot/aJKG/~3/Y4Y0vkA53Js/de-raptoribus-fowler-et-al-2011.html" title="De Raptoribus (Fowler et al. 2011)" /><author><name>Andrea Cau</name><email>noreply@blogger.com</email><gd:image rel="http://schemas.google.com/g/2005#thumbnail" width="32" height="32" src="http://bp0.blogger.com/_6fVePgcYTJc/SE_UX5HI2zI/AAAAAAAAAiQ/8db3Vn1OwBw/S220/Mio+Logo.jpg" /></author><thr:total>13</thr:total><content type="html">
 



Preannunciato dal precendente post...

Il comportamento predatorio dei Dromaeosauridae ha suscitato interesse e suggestioni. Molte ipotesi sono state formulate, ma spesso su basi poco testabili e molto speculative. Un nuovo studio propone un'interpretazione originale che ha il pregio di essere robusta sul piano delle evidenze e generare conseguenze interessanti a livello generale.

Fowler 
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Questo mio disegno risale al 2009. Mostra un dromaeosauride incombere sulla sua preda come un uccello rapace di oggi, con le ali che la cingono e gli artigli delle zampe posteriori che la immobilizzano.

Con piacere, scopro che non era poi così bizzarro...
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I due frammenti di Abelisauridae dal Kem Kem in vista laterale (in alto), mediale (a metà altezza) e ventrale (in basso). Scala metrica 5 cm. Da D'Orazi et al. 2011


D'Orazi et al. (2011) descrivono due frammenti di mascellare di abelisauride dal Cenomaniano del Marocco. Si tratta di due rami ventrali del mascellare, con alcuni alveoli (uno conserva un dente in eruzione nell'alveolo). I resti 
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