tag:blogger.com,1999:blog-2156944512466583246.post1804053669885425872..comments2024-03-18T18:17:34.333+01:00Comments on Theropoda: Lo squisito _Linheraptor_ Xu et al. (2010) ed il destino di _Tsaagan_Unknownnoreply@blogger.comBlogger14125tag:blogger.com,1999:blog-2156944512466583246.post-16887923902761210422013-08-06T21:42:43.019+02:002013-08-06T21:42:43.019+02:00La frase si riferisce alla penecontemporaneità dei...La frase si riferisce alla penecontemporaneità dei dromaeosauridi della Formazione Djadokhta e alle sue probabili estensioni coeve. Adasaurus è dalla Nemegt (più recente), mentre Achillobator è dalla Bayan Shire (più antico).Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-59319143239667486512013-08-06T19:06:06.587+02:002013-08-06T19:06:06.587+02:00'Questo taxon è il quinto Dromaeosauridae dall...'Questo taxon è il quinto Dromaeosauridae dall'alto Cretacico Superiore della regione mongolica (assieme a Velociraptor mongoliensis, "V." osmolskae*, Tsaagan e Mahakala)'<br />E Adasaurus? Non è un sesto dromeosauride del tardo cretaceo della mongolia?Anonymoushttps://www.blogger.com/profile/15396504386615815210noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-42437513378308772862013-03-25T16:11:15.623+01:002013-03-25T16:11:15.623+01:00Questo commento è stato eliminato dall'autore.Anonymoushttps://www.blogger.com/profile/15396504386615815210noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-53297901493831965872012-09-21T14:07:40.573+02:002012-09-21T14:07:40.573+02:00perfetto, grazie ancora per la rispostaperfetto, grazie ancora per la rispostaElijah Shandseighthttps://www.blogger.com/profile/15622423593087745170noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-88441531814992953722012-09-21T13:57:02.557+02:002012-09-21T13:57:02.557+02:00Turner et al. (2012) comparano gli olotipi di Tsaa...Turner et al. (2012) comparano gli olotipi di Tsaagan e Linheraptor e notano che tutte le autapomorfie del primo sono presenti nel secondo, ed interpretano i caratteri citati da Xu et al. (2010) come differenzianti il secondo dal primo come errate interpretazioni, o variabilità intraspecifica o dovuti a fenomeni geologici (compressione, deformazione, ecc...). Senter (2011, 2012) è giunto alla Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-59653694159691378532012-09-21T13:42:15.042+02:002012-09-21T13:42:15.042+02:00Con la recente monografia su Deinonychosauria ad o...Con la recente monografia su Deinonychosauria ad opera di Turner et al. che discute sulla questione che Linheraptor sia in realtà sinonimo di Tsaagan, è questa ipotesi davvero corretta? I due taxon si assomigliano al quanto, ma quando Linheraptor è stato eretto vuol dire che contiene sufficienti caratteri differenti dal "Mostro Bianco". Riusciresti (se posso darti del tu) a darmi Elijah Shandseighthttps://www.blogger.com/profile/15622423593087745170noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-57757755447743805842010-03-21T06:59:24.417+01:002010-03-21T06:59:24.417+01:00Io ho usato Homimnidae nel senso comprendente solo...Io ho usato Homimnidae nel senso comprendente solo Homo e senza gli "ex" pongidi, che considero Hominoidea.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-28976157957429140572010-03-20T12:37:26.651+01:002010-03-20T12:37:26.651+01:00Sono daccordo con te, Andrea. Linneo a suo tempo e...Sono daccordo con te, Andrea. Linneo a suo tempo ebbe una meravigliosa idea, ma i tempi ora sono cambiati. La vecchia Tassonomia linneana è oramai obsoleta e non spiega per niente bene i rapporti evolutivi tra le creature moderne, figuriamoci se consideriamo anche gli organismi esitinti! Piccola precisazione: della "famiglia" Hominidae oggi sopravvivono ben 3 generi e 4 specie. <br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-6100991568752753542010-03-19T19:34:15.783+01:002010-03-19T19:34:15.783+01:00Son daccordiddismo che la cosa migliore sarebbe el...Son daccordiddismo che la cosa migliore sarebbe eliminar i rank... anchio penso che siano inutili e che sian "misleading"... Per me la cosa migliore è comparar i sister group fra di loro.... i motivi son molteplici e son chiaramente espressi quì<br />http://ultrazionale.blogspot.com/2008/09/la-grande-guerra-mitologica-tardo.html<br />Ma soprattutto perchè la "gerarchia" di un Fabrizionoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-86871136461841320972010-03-19T18:28:39.138+01:002010-03-19T18:28:39.138+01:00They are "similar-ranked" just to keep t...They are "similar-ranked" just to keep the same Linnean original ranking. And to be more rigorous, oldest Linnean systems didn't include families. The original sense of genera was more like traditional families: genus Felis included all felids; Canis all canids (plus hyenas); Equus all equids, etc.<br />The use of familial names usually keep a very conservative definition, it's João Simõeshttps://www.blogger.com/profile/10222169018695033058noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-5849690601316327152010-03-19T16:40:45.064+01:002010-03-19T16:40:45.064+01:00The rank-based taxonomy is meaningless also withou...The rank-based taxonomy is meaningless also without accounting the deep time.<br />What makes the modern clades Hominidae and Equidae "similar-ranked"?Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-48014694345814569962010-03-19T16:31:54.262+01:002010-03-19T16:31:54.262+01:00Well, there certainly was a time when the clade Dr...Well, there certainly was a time when the clade Dromaeosauridae was only as old as Hominidae is now. Maybe there was only one species of them around at that time, too...<br /><br />It's not the differing size and longevity of various same-rank clades that makes Linnean taxonomy messy, it's the fact that Linneaus wasn't accounting for "deep time" at all.Bradhttps://www.blogger.com/profile/15613329277334129312noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-26478673537028320812010-03-19T15:40:41.246+01:002010-03-19T15:40:41.246+01:00My solution is simpler: just stop using obsolete a...My solution is simpler: just stop using obsolete and meaningless concepts as "families", "orders", "infraorders", "subnanoinfraorders", "classes" and so on. Using only un-ranked groups (regardless of their suffixes) we will be free from non-sense concepts developed in pre-Darwinian times by Linnean non-evolutionist taxonomy.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-48677648452696159002010-03-19T15:33:04.533+01:002010-03-19T15:33:04.533+01:00The obvious problem in using Linnean taxonomy for ...The obvious problem in using Linnean taxonomy for extinct creatures is that it's a cumulative process. Oviraptors and velociraptors were discovered and first classified as just ordinary new species of ornithomimids. Later, a massive amount of new species, genera and information was added, and what is supposed to be just new genera became raised to families, and now to suprafamilial rankings. João Simõeshttps://www.blogger.com/profile/10222169018695033058noreply@blogger.com