tag:blogger.com,1999:blog-2156944512466583246.post8528537250927595571..comments2024-03-18T18:17:34.333+01:00Comments on Theropoda: Shidaisaurus jinae Wu et al. (2009) e l'evoluzione dei tetanuri basali (aggiornato il 28 Febbraio)Unknownnoreply@blogger.comBlogger15125tag:blogger.com,1999:blog-2156944512466583246.post-14586896337942628432009-03-03T16:35:00.000+01:002009-03-03T16:35:00.000+01:00So Saurophaganax is no longer a 'giant Allosaurus'...So Saurophaganax is no longer a 'giant Allosaurus'? Interesting.<BR/><BR/>BrettBretthttps://www.blogger.com/profile/12168403050889835504noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-69532475735872476412009-02-28T00:38:00.000+01:002009-02-28T00:38:00.000+01:00Yes, with the possible exception of the last one: ...Yes, with the possible exception of the last one: the neural spines seems subvertical, and not strongly inclined as Sinraptor or Aerosteon.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-42439263957117128622009-02-27T21:27:00.000+01:002009-02-27T21:27:00.000+01:00Very interesting position. Due to the downcurved ...Very interesting position. Due to the downcurved paroccipital processes, inclined axial intercentrum, accessory lamina in the infradiapophyseal fossa and anteriorly tilted posterior dorsal neural spines?Mickey Mortimerhttps://www.blogger.com/profile/08831823442911513851noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-43728204124954742652009-02-27T16:04:00.000+01:002009-02-27T16:04:00.000+01:00Yes, I agree with Novas et al.'s conclusions.Yes, I agree with Novas et al.'s conclusions.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-72896087692111316692009-02-27T15:59:00.000+01:002009-02-27T15:59:00.000+01:00Well, the last thing I read on that dinosaur was N...Well, the last thing I read on that dinosaur was Novas et al. (2005) who consider Sigilmassasaurus brevicollis as a valid species. According to them, this one includes cervical vertebrae from Morocco (Russel, 1996) and Egypt ("Spinosaurus B" - Stromer, 1934) which do not belong to Carcharodontosauridae. However, they consider the caudal vertebrae of Sigilmassasaurus (and "Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-75473062153605633082009-02-27T15:03:00.000+01:002009-02-27T15:03:00.000+01:00As far as I know, actually nobody is working on Si...As far as I know, actually nobody is working on Sigilmassasaurus, but I know that there are new data that could be used in a future study, so I cannot say more.<BR/><BR/>Thank you!Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-36988481295592296492009-02-27T14:53:00.000+01:002009-02-27T14:53:00.000+01:00No, no, it's perfect, I was not expecting more det...No, no, it's perfect, I was not expecting more details 'cause you're still working on it.<BR/>Poekilopleuron a basal torvosaurid? Very interesting... Thanks again and yeah, I'll definitely keep an eye on your blog often.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-42804775482416525712009-02-27T14:37:00.000+01:002009-02-27T14:37:00.000+01:00Eustreptospondylus and Poekylopleuron are recovere...Eustreptospondylus and Poekylopleuron are recovered, respectively, as a derived and a basal torvosaurid.<BR/><BR/>Sigilmassasaurus: I consider it distinct from Carcharodontosaurus. In two previous posts I suggested that I would be a basal coelurosaur, but actually, I've changed that idea. <BR/>I'm very sorry but I cannot say more... wait for future posts ;-)Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-59682066084906758842009-02-27T14:28:00.000+01:002009-02-27T14:28:00.000+01:00Fair enough! And just one last question, where are...Fair enough! And just one last question, where are situated Eustreptospondylus oxoniensis, Poekilopleuron bucklandii and Sigilmassasaurus brevicolis (if you consider the latter as a valid taxa) in your phylogeny?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-60561276323895091172009-02-27T14:10:00.000+01:002009-02-27T14:10:00.000+01:00Because in my analyses, the position of Megalosaur...Because in my analyses, the position of Megalosaurus bucklandii (to whom should be anchored the name Megalosauridae) is not stable: sometimes it results a basal spinosaurid, other a basal torvosaurid. So, I prefer using Torvosauridae until Megalosaurus's position is better resolved.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-89603209770420853202009-02-27T14:06:00.000+01:002009-02-27T14:06:00.000+01:00Yeah, I though that it was the cladistic analysis ...Yeah, I though that it was the cladistic analysis of the paper on Shidaisaurus but I'm glad to know it's yours. I'm waiting forwards your results. By the way, why do you keep Torvosauridae rather than Megalosauridae?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-70677024013001309652009-02-27T12:12:00.000+01:002009-02-27T12:12:00.000+01:00Yes, this is the most recent result of my large-sc...Yes, this is the most recent result of my large-scale theropod phylogeny (Cau & Maganuco, in prep.): torvosaurids ("megalosaur-grade" tetanurans) are not recovered into Spinosauroidea. <BR/>Basal Tetanurae is one of the most problematic areas of theropod phylogeny, so, it is possible that future re-running of the data matrix with new codings and other characters added may produce a Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-26507278949654329132009-02-27T10:26:00.000+01:002009-02-27T10:26:00.000+01:00I haven't got the paper yet but I can see that thi...I haven't got the paper yet but I can see that this new phylogenetical analysis encompassing 1134 characters does not recognize the Spinosauroidea anymore...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-20854121042106946602009-02-27T07:13:00.000+01:002009-02-27T07:13:00.000+01:00Caro Anonimo (di solito preferisco rispondere a co...Caro Anonimo (di solito preferisco rispondere a commenti firmati...),<BR/><BR/>è possibilissimo che i ceratopsi di piccola e media taglia (e i giovani di tutte le taglie) si nutrissero anche di semi e frutta.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-2896040017224199692009-02-27T01:25:00.000+01:002009-02-27T01:25:00.000+01:00scusami se faccio un commento qui dove non centra ...scusami se faccio un commento qui dove non centra nulla, ma non trovo più l'argomento!<BR/>mi riferisco a quando parlavi delle diete dei dinosauri e della coevoluzione delle piante:<BR/><BR/>visto i becchi a pappagallo dei triceratopi e simili, è possibile che si nutrissero (anche) di semi?<BR/>o dico una bestialità?<BR/>scusa di nuovo <BR/>ciao ;-)Anonymousnoreply@blogger.com