Results 31 to 40 of about 789 (158)

Anatomy and relationships of the early diverging Crocodylomorphs Junggarsuchus sloani and Dibothrosuchus elaphros

The Anatomical Record, Volume 305, Issue 10, Page 2463-2556, October 2022., 2022
Abstract The holotype of Junggarsuchus sloani, from the Shishugou Formation (early Late Jurassic) of Xinjiang, China, consists of a nearly complete skull and the anterior half of an articulated skeleton, including the pectoral girdles, nearly complete forelimbs, vertebral column, and ribs.
Alexander A. Ruebenstahl, Michael D. Klein, Hongyu Yi, Xing Xu, James M. Clark   +4 more
wiley   +1 more source

Feeding habits of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from Germany and palaeoecological implications for archosaurs

Palaeontology, Volume 65, Issue 3, May/June 2022., 2022
Abstract Bite traces on fossil bones are key to deciphering feeding ecology and trophic interactions of vertebrate past ecosystems. However, similarities between traces produced by different carnivorous taxa with similar dentitions, and misidentifications due to equifinality, hinder confident identifications of the bite makers.
Eudald Mujal, Christian Foth, Erin E. Maxwell, Dieter Seegis, Rainer R. Schoch, David Button   +5 more
wiley   +1 more source

The furculae of the dromaeosaurid dinosaur Dakotaraptor steini are trionychid turtle entoplastra [PDF]

PeerJ, 2016
Dakotaraptor steini is a recently described dromaeosaurid dinosaur from the Upper Cretaceous (Maastrichtian) Hell Creek Formation of South Dakota. Included within the D.
Victoria M. Arbour, Lindsay E. Zanno, Derek W. Larson, David C. Evans, Hans-Dieter Sues   +4 more
doaj   +2 more sources

Shake a tail feather: the evolution of the theropod tail into a stiff aerodynamic surface [PDF]

, 2013
Theropod dinosaurs show striking morphological and functional tail variation; e.g., a long, robust, basal theropod tail used for counterbalance, or a short, modern avian tail used as an aerodynamic surface.
A Tyson, AH Turner, AJ Berger, ALR Thomas, Anjali Goswami, BC Livezey, BH Newman, BM Boszczyk, CL Gao, CM Sternberg, DA Russell, DE Alexander, DG Lloyd, DM Henderson, DR Carrier, DWE Hone, DWL Hulkins, EJ Slijper, EN Kurochkin, F Braña, F Seebacher, FC Zhang, G Mayr, G Olshevsky, GB Gillis, H Mallison, H Rockwell, J Fooden, J Hall, J Maynard-Smith, JA Clarke, JA Gauthier, JH Long, JH Long, JH Ostrom, JJ Baumel, JL Sanz, JM O’Connor, JM O’Connor, JN Choiniere, JO Farlow, John R. Hutchinson, JP Dickey, JR Hutchinson, JR Hutchinson, JR Hutchinson, JR Hutchinson, JS Willey, JT Manter, K Kubo, LM Chiappe, M Whitson, MA Norell, MAR Koehl, Michael Pittman, N Schilling, P Cavallini, P Christiansen, P Senter, Paul Upchurch, Q Ji, QG Li, R Barsbold, Richard J. Butler, RV Alatalo, S Chatterjee, S Valentin, SA Barnett, SH Hwang, SL Washburn, SM Gatesy, SM Gatesy, SM Gatesy, SM Gatesy, SM McGill, Stephen M. Gatesy, T He, T Libby, TJ Koob, V Allen, VA Tucker, WJ Bock, WP Maddison, WS Persons, WS Persons, WS Persons, X Xu, X Xu, ZH Zhou, Ø Hammer   +89 more
core   +17 more sources

The first dromaeosaurid (Dinosauria: Theropoda) from the Lower Cretaceous Bayan Gobi Formation of Nei Mongol, China [PDF]

PeerJ, 2015
The first dromaeosaurid theropod from the Lower Cretaceous Bayan Gobi Formation is identified based on an incompletely preserved partially-articulated left leg, increasing the known diversity of its understudied ecosystem.
Michael Pittman, Rui Pei, Qingwei Tan, Xing Xu   +3 more
doaj   +2 more sources

A new dromaeosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Wulansuhai Formation of Inner Mongolia, China [PDF]

, 2010
We describe a new dromaeosaurid theropod from the Upper Cretaceous Wulansuhai Formation of Bayan Mandahu, Inner Mongolia. The new taxon, Linheraptor exquisitus gen. et sp.
Choiniere, J.N., Clark, J.M., Hone, D.W.E., Li, Z., Norrell, M.A., Pittman, M.D., Sullivan, C., Tan, L., Tan, Q., Xiao, D., Xu, X.   +10 more
core   +1 more source

The phylogenetic affinities of the bizarre Late Cretaceous Romanian theropod Balaur bondoc (Dinosauria, Maniraptora): dromaeosaurid or flightless bird? [PDF]

PeerJ, 2015
The exceptionally well-preserved Romanian dinosaur Balaur bondoc is the most complete theropod known to date from the Upper Cretaceous of Europe. Previous studies of this remarkable taxon have included its phylogenetic interpretation as an aberrant ...
Andrea Cau, Tom Brougham, Darren Naish
doaj   +2 more sources

Morphological disparity in theropod jaws: comparing discrete characters and geometric morphometrics

Palaeontology, Volume 63, Issue 2, Page 283-299, March 2020., 2020
Abstract Disparity, the diversity of form and function of organisms, can be assessed from cladistic or phenetic characters, and from discrete characters or continuous characters such as landmarks, outlines, or ratios. But do these different methods of assessing disparity provide comparable results?
Joep Schaeffer, Michael J. Benton, Emily J. Rayfield, Thomas L. Stubbs, Kenneth Angielczyk   +4 more
wiley   +1 more source

Osteology of the unenlagiid theropod Neuquenraptor argentinus from the Late Cretaceous of Patagonia [PDF]

, 2017
Neuquenraptor argentinus was described as the first undoubted deinonychosaurian theropod from Gondwana. The only known specimen is represented by a fragmentary skeleton, including a nearly complete foot, coming from Late Cretaceous beds of Neuquén ...
Agnolin, Federico, Aranciaga Rolando, Alexis Mauro, Brissón Egli, Federico, Novas, Fernando Emilio   +3 more
core   +2 more sources

A second Cretaceous ornithuromorph bird from the Changma Basin, Gansu Province, Northwestern China [PDF]

, 2010
Finely-bedded lacustrine deposits of the Aptian (Lower Cretaceous) Xiagou Formation exposed in the Changma Basin of Gansu Province, northwestern China, have yielded numerous fossil vertebrate remains, including approximately 100 avian specimens.
Atterholt, J, Harris, JD, Lamanna, MC, Li, DQ, O'Connor, JK, You, HL   +5 more
core   +2 more sources