Results 1 to 10 of about 287 (148)

Anatomical description and digital reconstruction of the skull of Jeholosaurus shangyuanensis (Dinosauria, Ornithopoda) from China. [PDF]

open access: yesPLoS ONE
Ornithopod dinosaurs appeared during the Middle Jurassic, but it was in the Lower Cretaceous they started their successful evolutionary history. Different phylogenies describing the evolutionary relationships of Ornithopoda are mostly based on cranial ...
Filippo Bertozzo   +3 more
doaj   +4 more sources

The Venice specimen of Ouranosaurus nigeriensis (Dinosauria, Ornithopoda) [PDF]

open access: yesPeerJ, 2017
Ouranosaurus nigeriensis is an iconic African dinosaur taxon that has been described on the basis of two nearly complete skeletons from the Lower Cretaceous Gadoufaoua locality of the Ténéré desert in Niger. The entire holotype and a few bones attributed
Filippo Bertozzo   +2 more
doaj   +8 more sources

The world’s oldest cerapodan ornithischian dinosaur from the Middle Jurassic of Morocco [PDF]

open access: yesRoyal Society Open Science
The cerapodan dinosaurs were an ornithischian clade that achieved a global distribution in the Cretaceous Period. The ichnological record suggests that these dinosaurs had evolved by the Middle Jurassic, but only a single cerapodan body fossil, an ...
Susannah Maidment   +7 more
doaj   +2 more sources

Multi-proxy dentition analyses reveal niche partitioning between sympatric herbivorous dinosaurs [PDF]

open access: yesScientific Reports, 2022
Dentitions of the sympatric herbivorous dinosaurs Hungarosaurus (Ankylosauria, Nodosauridae) and Mochlodon (Ornithopoda, Rhabdodontidae) (Santonian, Hungary) were analysed to investigate their dietary ecology, using several complementary methods ...
Attila Ősi   +9 more
doaj   +2 more sources

A new basal ornithopod dinosaur from the Lower Cretaceous of China [PDF]

open access: yesPeerJ, 2020
A new basal ornithopod dinosaur, based on two nearly complete articulated skeletons, is reported from the Lujiatun Beds (Yixian Fm, Lower Cretaceous) of western Liaoning Province (China).
Yuqing Yang   +3 more
doaj   +3 more sources

A new iguanodontian (Dinosauria: Ornithopoda) from the Early Cretaceous of Mongolia [PDF]

open access: yesPeerJ, 2018
We describe a new iguanodontian ornithopod, Choyrodon barsboldi gen. et sp. nov. from the Albian-aged Khuren Dukh Formation of Mongolia based on several partial skeletons interpreted to represent a subadult growth stage based on osteohistological ...
Terry A. Gates   +4 more
doaj   +5 more sources

Tooth replacement in the early-diverging neornithischian Jeholosaurus shangyuanensis and implications for dental evolution and herbivorous adaptation in Ornithischia [PDF]

open access: yesBMC Ecology and Evolution
Background Tooth replacement patterns of early-diverging ornithischians, which are important for understanding the evolution of the highly specialized dental systems in hadrosaurid and ceratopsid dinosaurs, are poorly known.
Jinfeng Hu   +3 more
doaj   +2 more sources

The systematic relationships and biogeographic history of ornithischian dinosaurs [PDF]

open access: yesPeerJ, 2015
The systematic relationships of taxa traditionally referred to as ‘basal ornithopods’ or ‘hypsilophodontids’ remain poorly resolved since it was discovered that these taxa are not a monophyletic group, but rather a paraphyletic set of neornithischian ...
Clint A. Boyd
doaj   +3 more sources

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

open access: yesPeerJ, 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   +3 more
doaj   +3 more sources

A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia [PDF]

open access: yesPeerJ, 2021
The Upper Cretaceous ‘upper’ Winton Formation of Queensland, Australia is world famous for hosting Dinosaur Stampede National Monument at Lark Quarry Conservation Park, a somewhat controversial tracksite that preserves thousands of tridactyl dinosaur ...
Stephen F. Poropat   +7 more
doaj   +2 more sources

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