Skull ontogeny inArrhinoceratops brachyops(Ornithischia: Ceratopsidae) and other horned dinosaurs [PDF]
Zoological Journal of the Linnean Society, 2015 Only the type specimen of Arrhinoceratops brachyops Parks can be assigned without question to the ceratopsid genus Arrhinoceratops. The original description, however, requires revision. Contrary to published accounts, a nasal horn core is present, the jugal cannot be characterized by an unusually long anterior process, and there is no nasal–rostral ...
Jordan C. Mallon +2 more
openaire +2 more sources
A New Centrosaurine Ceratopsid, Machairoceratops cronusi gen et sp. nov., from the Upper Sand Member of the Wahweap Formation (Middle Campanian), Southern Utah. [PDF]
PLoS One, 2016 The Upper Cretaceous (middle-late Campanian) Wahweap Formation of southern Utah contains the oldest diagnostic evidence of ceratopsids (to date, all centrosaurines) in North America, with a number of specimens recovered from throughout a unit that spans ...
Lund EK +3 more
europepmc +5 more sources
The dentary of hadrosauroid dinosaurs: evolution through heterochrony
Palaeontology, Volume 66, Issue 5, September/October 2023., 2023 Abstract The near‐global distribution of hadrosaurid dinosaurs during the Cretaceous has been attributed to mastication, a behaviour commonly recognized as a mammalian adaptation. Its occurrence in a non‐mammalian lineage should be accompanied by the evolution of several morphological modifications associated with food acquisition and processing.
D. Fredrik K. Söderblom +3 more
wiley +1 more source
The record ofTorosaurus(Ornithischia: Ceratopsidae) in Canada and its taxonomic implications
Zoological Journal of the Linnean Society, 2022 AbstractThe horned dinosaur genus Torosaurus has a challenging history, relating both to its geographic distribution and taxonomy. Whereas Torosaurus has been reported from Upper Maastrichtian deposits in Canada, which would mark the northernmost range of the genus, recent work has questioned the generic identity of the implicated material, which ...
Jordan C Mallon +3 more
openaire +1 more source
Males resemble females. re-evaluating sexual dimorphism in protoceratops andrewsi (neoceratopsia, protoceratopsidae) [PDF]
, 2015 BACKGROUND: Protoceratops andrewsi (Neoceratopsia, Protoceratopsidae) is a well-known dinosaur from the Upper Cretaceous of Mongolia. Some previous workers hypothesized sexual dimorphism in the cranial shape of this taxon, using qualitative and ...
Farke, Andrew A. +3 more
core +3 more sources
Nasutoceratops titusi(Ornithischia, Ceratopsidae), a basal centrosaurine ceratopsid from the Kaiparowits Formation, southern Utah [PDF]
Journal of Vertebrate Paleontology, 2016 The skull and associated postcrania of Nasutoceratops titusi, a basal centrosaurine ceratopsid from the Upper Cretaceous (Campanian) Kaiparowits Formation of Grand Staircase–Escalante National Monument, southern Utah, are herein described. Autapomorphies of this taxon include: an ectonaris that comprises 75% of preorbital skull length; pneumatic nasals;
Lund, Eric K. +2 more
openaire +1 more source
A Probable Neoceratopsian Manus Track from the Nanushuk Formation (Albian, Northern Alaska) [PDF]
, 2010 We report a likely neoceratopsian manus track from an exposure of the Nanushuk Formation along the Colville River in northern Alaska. The track described here containts the impressions of five digits, arranged as an arc, which identify this specimen as a
Decker, P. L. +4 more
core +2 more sources
A revision of the Ceratopsia or horned dinosaurs. [PDF]
, 1933 3 pt.
Le Vene, Clara Mae. +2 more
core +2 more sources
The exquisitely preserved integument of Psittacosaurus and the scaly skin of ceratopsian dinosaurs [PDF]
, 2022 The Frankfurt specimen of the early-branching ceratopsian dinosaur Psittacosaurus is remarkable for the exquisite preservation of squamous (scaly) skin and other soft tissues that cover almost its entire body.
Bell, Phil R. +4 more
core +2 more sources
Notice of nodosaur (Dinosauria, Ankylosauria) remains from the mid-Cretaceous of Cambridge, England, with comments on cervical half-ring armour [PDF]
, 2014 Three pieces from cervical half-rings of an immature nodosaur, part of a nodosaurid presacral rod and some post-cranial osteoderms from the Cretaceous of Cambridge were studied at the Booth Museum of Natural History, Brighton, UK.
Blows +28 more
core +1 more source