tag:blogger.com,1999:blog-2156944512466583246.post9098525697844400843..comments2024-03-18T18:17:34.333+01:00Comments on Theropoda: Lode alla Piccola Halszka - Terza Parte: l'anatomia unica di Halszkaraptor Unknownnoreply@blogger.comBlogger13125tag:blogger.com,1999:blog-2156944512466583246.post-1063020016542055102017-12-12T02:04:50.383+01:002017-12-12T02:04:50.383+01:00Yes, you understand me exactly. Further, the fore...Yes, you understand me exactly. Further, the forelimb motion that modern birds use for swimming is biomechanically homologous to the flight stroke. This is not a surprise - the swimming motion is derived from the flight stroke. I'm not suggesting that this is the case for halszkaraptorines. But any potential connection is intriguing.<br />I look forward to your new information.Timhttps://www.blogger.com/profile/17837037454015036429noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-13693636600622202542017-12-12T00:22:21.803+01:002017-12-12T00:22:21.803+01:00It is a legit question, that need a detailed phylo...It is a legit question, that need a detailed phylogenetic and functional analysis. Is Halszkaraptor "aquatic forelimb apparatus" homologous to the flight apparatus of other paravians? <br />It is intriguing but it cannot be stated at this stage.<br />Positive news: we have been collecting new information on Halszka forelimb...Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-25998136324498534512017-12-12T00:08:05.734+01:002017-12-12T00:08:05.734+01:00Yes, theropod paleobiology is a lot more than just...Yes, theropod paleobiology is a lot more than just bird origins - I totally agree. But I was thinking more broadly - Paraves level. Microraptor shows evidence of powered flight - implying a flight stroke. Although Halszkaraptor is not directly relevant for bird flight origins, it does show evidence that the forelimb was used for locomotion. So Paraves shows a shift to use of the forelimb in Timhttps://www.blogger.com/profile/17837037454015036429noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-7751805924843469772017-12-11T06:56:10.350+01:002017-12-11T06:56:10.350+01:00I consider the aquatic/swimming function in Halszk...I consider the aquatic/swimming function in Halszkaraptorinae a derived feature of this lineage, not related to bird flight. (Remember: "Theropod Paleobiology is More than Just Bird Origins").<br />Halszkaraptor is 85 Myrs younger than early birds, and basal troodontids (closer to birds than Halszkaraptor: see cladograms in supplementary information of our paper) lack any flight Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-74696497908960749782017-12-11T03:40:57.506+01:002017-12-11T03:40:57.506+01:00Congratulations again on this amazing work. Two p...Congratulations again on this amazing work. Two points:<br />* I'm intrigued by the swimming forelimb in a theropod taxon (Halszkaraptorinae) that is so close to the origin of avian flight. Even though the precise swimming motion cannot be inferred, it indicates a locomotory function for the forelimb. So different taxa within basal Paraves demonstrate aerial flight and underwater/Timhttps://www.blogger.com/profile/17837037454015036429noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-24489328715262900702017-12-08T18:57:30.361+01:002017-12-08T18:57:30.361+01:00Devo dire che l'anatomia cervicale mi ricorda ...Devo dire che l'anatomia cervicale mi ricorda tra l'altro i coelophysidi derivati, i quali presentano anche un elevato numero di denti mascellari e dentali... mi chiedo se sia opportuno interpretare l'ecologia coelophyside come semi-acquatica alla luce di quanto sia ben evidente in Halszkaraptor <br /><br />Danny CicchettiAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-62465507489605146352017-12-08T11:31:19.392+01:002017-12-08T11:31:19.392+01:00La parte grassettata in fondo, letta alla lettera,...La parte grassettata in fondo, letta alla lettera, da ragione ai BAND! :-)<br />Scherzi a parte, l'inquadramento concettuale è molto bello.<br /><br />EmanueleUnknownhttps://www.blogger.com/profile/12073005343576829913noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-52562033739151819302017-12-08T11:30:06.093+01:002017-12-08T11:30:06.093+01:00Sì, perché nelle parti di Mahakala preservate sono...Sì, perché nelle parti di Mahakala preservate sono presenti alcuni adattamenti acquatici di Halszkaraptor. E siccome Hulsanpes è sister group di Mahakala, lo stesso discorso vale anche per Hulsanpes.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-18505851605785306082017-12-08T11:22:41.454+01:002017-12-08T11:22:41.454+01:00Le ipotesi riguardanti lo stile di vita di Halszka...Le ipotesi riguardanti lo stile di vita di <i>Halszkaraptor</i> sono plausibili anche per <i>Mahakala</i>?<br /><br />G.C.T.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-49935387549859616542017-12-08T10:54:33.341+01:002017-12-08T10:54:33.341+01:00In parte sì, nel senso che almeno il processo sopr...In parte sì, nel senso che almeno il processo sopratrocanterico (uno dei due elementi ipetrofici in Halszkaraptor) è condiviso da tutti i paraviani. Tuttavia, solo Halszkaraptorinae hanno una condizione così pronunciata tra i non-aviani.Andrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-1448237291121791902017-12-08T10:42:12.837+01:002017-12-08T10:42:12.837+01:00È possibile che il muscolo ileofubulare sviluppato...È possibile che il muscolo ileofubulare sviluppato sia una sinapomorfia con gli uccelli piú basali, e che la caratteristica si sia poi "persa" nei Dromeosauridi piú derivati? Non sono in alcun modo uno scienziato quindi è solo una "showerthought" che mi è venuta leggendo il post.DomenicoLhttps://www.blogger.com/profile/15907522708670323914noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-91075929319747266422017-12-08T09:05:27.591+01:002017-12-08T09:05:27.591+01:00Non ho dati per una analisi statistica, ma a naso ...Non ho dati per una analisi statistica, ma a naso mi pare nella norma dei DromaeosauridaeAndrea Cauhttps://www.blogger.com/profile/10855060597677361866noreply@blogger.comtag:blogger.com,1999:blog-2156944512466583246.post-19167189153177584712017-12-08T09:04:27.995+01:002017-12-08T09:04:27.995+01:00Una domanda: sbaglio o anche lo sterno è più ampio...Una domanda: sbaglio o anche lo sterno è più ampio rispetto a quello di altri theropodi non aviani?<br /><br />Giuseppe MennellaAnonymousnoreply@blogger.com