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RE: Theropod classification (link update)
The definition section does have some errors, such as citing Allain et al.
(2012) as providing the following definition for Megalosauria- "The most
inclusive clade containing Spinosaurus aegyptiacus and Torvosaurus tanneri but
not Allosaurus fragilis, and Passer domesticus (Stem-based definition)."
Besides the typo of "most" instead of "least", this is their definition of
Spinosauroidea. Hendrickx et al. then cite the definition they use ("The least
inclusive clade containing Megalosaurus bucklandii and Spinosaurus
aegyptiacus") as being modified from Allain et al.'s, but Allain et al. use a
completely different definition for Megalosauria- "the most inclusive clade
containing Dubreuillosaurus valesdunensis and Eustreptospondylus oxoniensis but
not Allosaurus fragilis, Spinosaurus aegyptiacus, Passer domesticus." In
reality, Hendrickx et al. used Carrano et al.'s (2012) concept of Megalosauria,
and the definition I proposed on the Database. I'm happy to see that definitio
n get out in the literature, as well as definitions for Allosauria,
Elmisaurinae, Coeluridae and Caudipteridae.
Mickey Mortimer
----------------------------------------
> Date: Thu, 20 Aug 2015 11:29:05 -0400
> From: tholtz@umd.edu
> To: bcreisler@gmail.com; dinosaur@usc.edu
> CC: christophe.hendrickx@hotmail.com
> Subject: RE: Theropod classification (link update)
>
> That's great! I hope that they have another update to mention that I had
> already given a phylogenetic definition for Dilophosauridae on p. 352 of
> Holtz (2012), a chapter cited throughout their work... :-)
>
> Thomas R. Holtz, Jr.
> Email: tholtz@umd.edu Phone: 301-405-4084
> Senior Lecturer, Vertebrate Paleontology
> Office: Geology 4106
> Dept. of Geology, University of Maryland
> http://www.geol.umd.edu/~tholtz/
> Phone: 301-405-6965
> Fax: 301-314-9661
>
> Faculty Director, Science & Global Change Program, College Park Scholars
> Office: Centreville 1216
> http://www.geol.umd.edu/sgc
> Fax: 301-314-9843
>
> Mailing Address: Thomas R. Holtz, Jr.
> Department of Geology
> Bu
> University of Maryland
> College Park, MD 20742 USA
>
>
>> -----Original Message-----
>> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu] On Behalf Of
>> Ben Creisler
>> Sent: Thursday, August 20, 2015 11:18 AM
>> To: dinosaur@usc.edu
>> Subject: Fwd: Theropod classification (link update)
>>
>> An important update! I was informed by Christophe that the pdf has been
>> updated to correct an error in Figure 5, which was cut off at
>> the bottom, removing Archaeopteryx and Aves from the cladogram.
>>
>>
>> Here's an updated link to the corrected pdf:
>>
>>
>> http://www.palarch.nl/wp-content/Hendrickx_etal_2015_non_avian_theropods_pjvp12_11.pdf
>>
>>
>> ---------- Forwarded message ----------
>> From: Ben Creisler <bcreisler@gmail.com>
>> Date: Wed, Aug 19, 2015 at 12:08 PM
>> Subject: Fwd: Theropod classification
>> To: dinosaur@usc.edu
>>
>>
>> Ben Creisler
>> bcreisler@gmail.com
>>
>>
>>
>> The last message got through! Here's the full listing but with spaces
>> inserted in the url after http: (remove to access) in case the url
>> was the problem.
>>
>>
>> Christophe Hendrickx, Scott A. Hartman & Octávio Mateus (2015) An Overview
>> of Non-Avian Theropod Discoveries and Classification.
>> PalArch’s Journal of Vertebrate Palaeontology 12: 1 (2015): 1-73 ISSN
>> 1567-2158
>> http:
>> //www.palarch.nl/2015/08/christophe-hendrickx-scott-a-hartman-octavio-mateus-2015-an-overview-of-non-avian-theropod-
>> discoveries-and-classification-palarchs-journal-of-vertebrate-palaeontology-12-1-2015/
>>
>>
>> pdf:
>> http:
>> //www.palarch.nl/wp-content/Hendrickx_etal_2015_non_avian_theropods_pjvp12_1.pdf
>>
>>
>>
>> Theropods form a taxonomically and morphologically diverse group of
>> dinosaurs that include extant birds. Inferred relationships
>> between theropod clades are complex and have changed dramatically over the
>> past thirty years with the emergence of cladistic
>> techniques. Here, we present a brief historical perspective of theropod
>> discoveries and classification, as well as an overview on the
>> current systematics of non-avi
orded theropod remains dating back to the 17th and 18th
>> centuries come from the Middle Jurassic of Oxfordshire and most likely
>> belong to the megalosaurid Megalosaurus. The latter was the
>> first theropod genus to be named in 1824, and subsequent theropod material
>> found before 1850 can all be referred to
>> megalosauroids. In the fifty years from 1856 to 1906, theropod remains were
>> reported from all continents but Antarctica. The clade
>> Theropoda was erected by Othniel Charles Marsh in 1881, and in its current
>> usage corresponds to an intricate ladder-like organization
>> of ‘family’ to ‘superfamily’ level clades.
>> The earliest definitive theropods come from the Carnian of Argentina, and
>> coelophysoids form the first significant theropod radiation
>> from the Late Triassic to their extinction in the Early Jurassic. Most
>> subsequent theropod clades such as ceratosaurs, allosauroids,
>> tyrannosauroids, ornithomimosaurs, therizinosaurs, oviraptorosaurs,
>> dromaeosaurids, and troodontids persisted until the end of the
>> Cretaceous, though the megalosauroid clade did not extend into the
>> Maastrichtian. Current debates are focused on the monophyly of
>> deinonychosaurs, the position of dilophosaurids within coelophysoids, and
>> megaraptorans among neovenatorids. Some recent
>> analyses have suggested a placement of dilophosaurids outside
>> Coelophysoidea, Megaraptora within Tyrannosauroidea, and a
>> paraphyletic Deinonychosauria with troodontids placed more closely to
>> avialans than dromaeosaurids.
>>
>>
>>
>>
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: Ben Creisler <bcreisler@gmail.com>
>> Date: Wed, Aug 19, 2015 at 12:01 PM
>> Subject: Blocked post for new theropod paper...
>> To: dinosaur@usc.edu
>>
>>
>> Ben Creisler
>> bcreisler@gmail.com
>>
>> I have tried repeatedly today to send a post the DML for a new monograph on
>> theropod classification in the open access journal
>> PalArch. Every attempt has been blocked, likely by the DML spam filter for
>> some unexplained reason. I don't know what is causing
>> posts to fail--something in the title, the url, or the abstract. Before I
>> try again, has anybody received my posts?
>>
>>
>> I monitored another email site and a "live" DML blog post site. My other
>> posts got through today but the new theropod paper item
>> (sent multiple times as three separate messages after all other attempts
>> failed, even with Forward) has not appeared..
>>
>>
>> Here's the general url.
>>
>> http://www.palarch.nl/
>