Results 61 to 70 of about 2,587 (228)

Ornithischia Seeley 1887

, 2021
Ornithischia The earliest known (Jurassic) ornithischians were small, bipedal cursors with long, muscular cantilever tails and a herbivorous diet (Fig. 25A). They processed food orally using a combination of orthal pulping and irregular occlusal shearing; they were also narrowsnouted (selective) feeders capable of utilizing more readily digested ...
openaire   +2 more sources

Discrete and continuous character-based disparity analyses converge to the same macroevolutionary signa. A case study from captorhinids [PDF]

, 2017
The relationship between diversity and disparity during the evolutionary history of a clade provides unique insights into evolutionary radiations and the biological response to bottlenecks and to extinctions.
Brocklehurst, Neil, Fröbisch, Jörg, Romano, Marco   +2 more
core   +2 more sources

Secondary cartilage revealed in a non-avian dinosaur embryo. [PDF]

PLoS ONE, 2013
The skull and jaws of extant birds possess secondary cartilage, a tissue that arises after bone formation during embryonic development at articulations, ligamentous and muscular insertions.
Alida M Bailleul, Brian K Hall, John R Horner   +2 more
doaj   +1 more source

The higher-level phylogeny of Archosauria (Tetrapoda:Diapsida) [PDF]

, 2010
Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary division of the vertebrate tree of life.
Arcucci A., Arcucci A., Ballew K. L., Barberena M. C., Bennett S. C., Benton M. J., Benton M. J., Benton M. J., Bonaparte J. F., Bonaparte J. F., Bonaparte J. F., Bonaparte J. F., Brinkman D., Broom R., Broom R., Brusatte S. L., Busbey A. B., Charig A. J., Charig A. J., Chatterjee S., Chatterjee S., Chatterjee S., Colbert E. H., Colbert E. H., Colbert E. H., Colbert E. H., Cope E. D., Cruickshank A. R. I., Crush P. J., Dawley R. M., Ezcurra M. D., Galton P. M., Galton P. M., Galton P. M., Galton P. M., Galton P. M., Gauthier J. A., Gebauer E. V. I., Gower D. J., Gower D. J., Gower D. J., Gower D. J., Gower D. J., Gregory J. T., Hallam A., Heckert A. B., Hone D. W. E., Huene F. von, Huene F. von, Hungerbühler A., Hunt A. P., Hunt A. P., Joyce W., Julia B. Desojo, Juul L., Krebs B., Krebs B., Krebs B., Krebs B., Langer M. C., Long R. A., Max C. Langer, McGregor J. H., Meyer H. von, Michael J. Benton, Moser M., Nesbitt S. J., Norman D. B., Novas F. E., Novas F. E., Osborn H. F., Osborn H. F., Owen R., Padian K., Parker W. G., Parrish J. M., Parrish J. M., Peters D., Pinna G., Rauhut O. W. M., Reig O. A., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Romer A. S., Santa Luca A. P., Santa Luca A. P., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Sereno P. C., Shubin N. H., Sill W. D., Sill W. D., Simms M. J., Stephen L. Brusatte, Swofford D. L., Thulborn R. A., Thulborn R. A., Tykoski R. S., Weinbaum J. C., Welles S. P., Wild R., Wilkinson M., Wroblewski A. F.-J., Young C. C., Zhang F. K.   +114 more
core   +1 more source

The anatomy and palaeobiology of the early armoured dinosaur Scutellosaurus lawleri (Ornithischia: Thyreophora) from the Kayenta Formation (Lower Jurassic) of Arizona

Royal Society Open Science, 2021
The armoured dinosaurs, Thyreophora, were a diverse clade of ornithischians known from the Early Jurassic to the end of the Cretaceous. During the Middle and Late Jurassic, the thyreophorans radiated to evolve large body size, quadrupedality, and complex
Benjamin T. Breeden, Thomas J. Raven, Richard J. Butler, Timothy B. Rowe, Susannah C. R. Maidment   +4 more
doaj   +1 more source

Peer Review #1 of "Digital preparation and osteology of the skull of Lesothosaurus diagnosticus (Ornithischia: Dinosauria) (v0.1)"

Journal of Vertebrate Paleontology, 2015
ABSTRACT New materials of Lesothosaurus diagnosticus permit a detailed understanding of one of the earliest and most primitive ornithischians. Skull proportions and suturai relations can be discerned from several articulated and disarticulated skulls. The snout is proportionately long with a vascularized, horn-covered tip.
CA Boyd
openalex   +4 more sources

Dinosaurs in decline tens of millions of years before their final extinction [PDF]

, 2016
Whether dinosaurs were in a long-term decline or whether they were reigning strong right up to their final disappearance at the Cretaceous–Paleogene (K-Pg) mass extinction event 66 Mya has been debated for decades with no clear resolution.
Chenet, Chris Venditti, Manabu Sakamoto, Michael J. Benton, Sullivan   +4 more
core   +1 more source

Sympatry of two ankylosaurs (Hungarosaurus and cf. Struthiosaurus) in the Santonian of Hungary [PDF]

, 2013
A complete and well-preserved right ankylosaurian humerus from the Upper Cretaceous (Santonian) Csehbánya Formation of Iharkút, western Hungary is described here.
Prondvai, Edina, Ősi, Attila
core   +3 more sources

Ornithischia Seeley 1887

, 2019
Ornithischia Seeley, 1887 Ornithopoda Marsh ...
Párraga, Javier, Prieto-Márquez, Albert   +1 more
openaire   +2 more sources

Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia [PDF]

PeerJ, 2018
During the Early Cretaceous, dinosaur communities of the Australian-Antarctic rift system (Eumeralla and Wonthaggi formations) cropping out in Victoria were apparently dominated by a diverse small-bodied ‘basal ornithopod’ fauna.
Phil R. Bell, Matthew C. Herne, Tom Brougham, Elizabeth T. Smith   +3 more
doaj   +2 more sources