Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Velociraptor
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
===Additional species=== [[File:Velociraptorine skulls.png|thumb|[[Velociraptorine]] skulls, B, D, E are ''V. mongoliensis'', C is ''V'' sp., and F is ''V. osmolskae'' (known parts in gray)]] [[Maxilla]]e and a [[lacrimal bone|lacrimal]] (the main tooth-bearing bones of the upper jaw, and the bone that forms the anterior margin of the eye socket, respectively) recovered from the [[Bayan Mandahu Formation]] in 1999 by the Sino-Belgian Dinosaur Expeditions were found to pertain to ''Velociraptor'', but not to the type species ''V. mongoliensis''. [[Pascal Godefroit]] and colleagues named these bones ''V. osmolskae'' (for Polish paleontologist [[Halszka Osmólska]]) in 2008.<ref name=PGetal2008>{{cite journal |last1=Godefroit |first1=Pascal |last2=Currie |first2=Philip J. |last3=Li |first3=Hong |last4=Shang |first4=Chang Yong |last5=Dong |first5=Zhi-ming |year=2008 |title=A new species of ''Velociraptor'' (Dinosauria: Dromaeosauridae) from the Upper Cretaceous of northern China |journal=Journal of Vertebrate Paleontology |volume=28 |issue=2 |pages=432–438 |doi=10.1671/0272-4634(2008)28[432:ANSOVD]2.0.CO;2|s2cid=129414074 }}</ref> However, the 2013 study noted that while "the elongate shape of the maxilla in ''V. osmolskae'' is similar to that of ''V. mongoliensis''," phylogenetic analysis found it to be closer to ''[[Linheraptor]]'', making the genus [[Paraphyly|paraphyletic]]; thus, ''V. osmolskae'' might not actually belong to the genus ''Velociraptor'' and requires reassessment.<ref>{{Cite journal|last1=Evans|first1=D.C.|last2=Larson|first2=D.W.|last3=Currie|first3=P.J.|date=2013|title=A new dromaeosaurid (Dinosauria: Theropoda) with Asian affinities from the latest Cretaceous of North America|journal=Naturwissenschaften|volume=100|issue=11|pages=1041–9|doi=10.1007/s00114-013-1107-5|pmid=24248432|bibcode=2013NW....100.1041E|s2cid=14978813}}</ref> Paleontologists Mark A. Norell and Peter J. Makovicky in 1997 described new and well preserved specimens of ''V. mongoliensis'', namely MPC-D 100/985 collected from the Tugrik Shireh locality in 1993, and MPC-D 100/986 collected in 1993 from the Chimney Buttes locality. The team briefly mentioned another specimen, MPC-D 100/982, which by the time of this publication remained undescribed.<ref name=norellmakovicky1997/> In 1999 Norell and Makovicky provided more insights into the anatomy of ''Velociraptor'' with additional specimens. Among these, MPC-D 100/982 was partially described and figured, and referred to ''V. mongoliensis'' mainly based on cranial similarities with the holotype skull, although they stated that differences were present between the pelvic region of this specimen and other ''Velociraptor'' specimens. This relatively well-preserved specimen including the skull was discovered and collected in 1995 at the Bayn Dzak locality (specifically at the "Volcano" sub-locality).<ref name=norellmakovicky1999/> Martin Kundrát in a 2004 abstract compared the neurocranium of MPC-D 100/982 to another ''Velociraptor'' specimen, MPC-D 100/976. He concluded that the overall morphology of the former was more derived (advanced) than the latter, suggesting that they could represent distinct taxa.<ref>{{cite journal|last1=Kundrát|first1=M.|date=2004|title=Two Morphotypes of the Velociraptor Neurocranium|type=Conference Abstract|journal=Journal of Morphology|volume=260|issue=3|page=305|doi=10.1002/jmor.10224|pmid=15124236 |s2cid=221869849 |url=https://oceanrep.geomar.de/id/eprint/913/1/2004-Journal_of_Morphology.pdf}}</ref> [[File:Velociraptor specimen IGM.jpg|thumb|''Velociraptor'' specimen MPC-D 100/982, possibly a new species]] Mark J. Powers in his 2020 master thesis fully described MPC-D 100/982, which he concluded to represent a new and third species of ''Velociraptor''. This species, which he considered distinct, was stated to mainly differ from other ''Velociraptor'' species in having a shallow maxilla morphology.<ref>{{cite thesis|type=Master Thesis|last1=Powers|first1=M. J.|date=2020|title=The Evolution of Snout Shape in Eudromaeosaurians and its Ecological Significance|publisher=Department of Biological Sciences, University of Alberta|doi=10.7939/r3-hz8e-5n76|url=https://era.library.ualberta.ca/items/c9c289c0-7cc4-42a0-ac53-9ffebf111d16/view/3c913f54-988b-40b8-8db2-f7ad9dee46e5/Powers_Mark_J_202006_MSc.pdf|archive-date=6 December 2022|access-date=14 June 2022|archive-url=https://web.archive.org/web/20221206171944/https://era.library.ualberta.ca/items/c9c289c0-7cc4-42a0-ac53-9ffebf111d16/view/3c913f54-988b-40b8-8db2-f7ad9dee46e5/Powers_Mark_J_202006_MSc.pdf|url-status=live}}</ref> Powers and colleagues also in 2020 used [[morphometric]] analyses to compare several dromaeosaurid maxillae, and found the maxilla of MPC-D 100/982 to strongly differ from specimens referred to ''Velociraptor''. They indicated that this specimen, based on these results, represents a different species.<ref>{{cite journal|last1=Powers|first1=M. A.|last2=Sullivan|first2=C.|last3=Currie|first3=P. J.|date=2020|title=Re-examining ratio based premaxillary and maxillary characters in Eudromaeosauria (Dinosauria: Theropoda): Divergent trends in snout morphology between Asian and North American taxa|journal=Palaeogeography, Palaeoclimatology, Palaeoecology|volume=547|number=109704|page=109704|bibcode=2020PPP...54709704P|doi=10.1016/j.palaeo.2020.109704|s2cid=216499705 }}</ref> In 2021 Powers with team used [[Principal Component Analysis]] to separate dromaeosaurid maxillae, most notably finding that MPC-D 100/982 falls outside the instraspecific variability of ''V. mongoliensis'', arguing for a distinct species. They considered that both ''V. mongoliensis'' and this new species were ecologically separated based on their skull anatomy.<ref>{{cite journal|last1=Powers|first1=M. J.|last2=Norell|first2=M A.|last3=Currie|first3=P. J.|date=2021|title=New shallow snouted species of Velociraptor sheds light on intraspecific variation in Velociraptor mongoliensis and possible niche partitioning between species|journal=Vertebrate Anatomy Morphology Palaeontology|volume=CSVP Online Abstracts|page=31|url=https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29374/21426/78423|archive-date=8 October 2022|access-date=14 June 2022|archive-url=https://web.archive.org/web/20221008180709/https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29374/21426/78423|url-status=live}}</ref> The team in another 2021 abstract reinforced again the species-level separation, noting that additional differences can be found in the hindlimbs.<ref>{{cite conference|last1=Powers|first1=M. J.|last2=Norell|first2=M A.|last3=Currie|first3=P. J.|date=2021|title=Examination of morphological variation across Velociraptor mongoliensis specimens reveals a new species with possible ecomorphological variation in snout dimensions|publisher=The Society of Vertebrate Paleontology|conference=Virtual Meeting Conference|page=211|url=https://vertpaleo.org/wp-content/uploads/2021/10/SVP_2021_VirtualBook_final.pdf|access-date=14 June 2022|archive-date=19 October 2021|archive-url=https://web.archive.org/web/20211019192436/https://vertpaleo.org/wp-content/uploads/2021/10/SVP_2021_VirtualBook_final.pdf|url-status=live}}</ref>
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)