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 ...
Eric K Lund +3 more
doaj +2 more sources
DiversityVery few remains of ceratopsid dinosaurs have been recovered so far from the Difunta Group of Coahuila, Mexico. The enigmatic chasmosaurine Coahuilaceratops magnacuerna was previously described on the basis of two partial skulls purportedly derived from ...
Daniela Barrera Guevara +6 more
doaj +2 more sources
Deep-time biodiversity patterns and the dinosaurian fossil record of the Late Cretaceous Western Interior, North America. [PDF]
Proc Biol Sci, 2021 In order for palaeontological data to be informative to ecologists seeking to understand the causes of today’s diversity patterns, palaeontologists must demonstrate that actual biodiversity patterns are preserved in our reconstructions of past ecosystems.
Maidment SCR +3 more
europepmc +3 more sources
Theropod guild structure and the tyrannosaurid niche assimilation hypothesis: implications for predatory dinosaur macroecology and ontogeny in later Late Cretaceous Asiamerica. [PDF]
, 2021 Well-sampled dinosaur communities from the Jurassic through the early Late Cretaceous show greater taxonomic diversity among larger (>50 kg) theropod taxa than communities of the Campano-Maastrichtian, particularly to those of eastern/central Asia and ...
Holtz, Thomas Richard Jr
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A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system. [PDF]
Sci Rep, 2017 A new species of tyrannosaurid from the upper Two Medicine Formation of Montana supports the presence of a Laramidian anagenetic (ancestor-descendant) lineage of Late Cretaceous tyrannosaurids.
Carr TD +4 more
europepmc +2 more sources
, 2017 For almost the entirely of the latter half of the Cretaceous, the continent of North America was divided into two sections, Laramidia in the west and Appalachia in the east.
Chase D Brownstein
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, 2023 An upheaval on the Greenland ice-cap; gods and battles on the border of Kush just before Ancient Egypt’s 18th dynasty; dark fantasy based around the Wurzburg Prince-Bishop’s Palace; some post-human-diaspora SF on Tau Ceti B; an alternate history moment ...
Kelso, Sylvia
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A Re-Evaluation of the Chasmosaurine Ceratopsid Genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of Western Canada. [PDF]
PLoS ONE, 2016 BACKGROUND:The chasmosaurine ceratopsid Chasmosaurus is known from the Upper Cretaceous (Campanian) Dinosaur Park Formation of southern Alberta and Saskatchewan. Two valid species, Chasmosaurus belli and C. russelli, have been diagnosed by differences in
James A Campbell +3 more
doaj +1 more source
A new Arctic hadrosaurid from the Prince Creek Formation (lower Maastrichtian) of northern Alaska [PDF]
Acta Palaeontologica Polonica, 2016 The Liscomb bonebed in the Price Creek Formation of northern Alaska has produced thousands of individual bones of a saurolophine hadrosaurid similar to Edmontosaurus; however, the specific identity of this taxon has been unclear, in part because the vast
Hirotsugu Mori +2 more
doaj +1 more source
A tyrannosaurid pedal ungual from the Williams Fork Formation (Campanian) of Colorado and its implications for the biogeography of Laramidian dinosaurs [PDF]
, 2023 A right theropod pedal ungual phalanx II-3 from the Campanian Williams Fork Formation of northwestern Colorado is described, and a combination of features, including the large size, tapering distal tip, robust and stout overall form, triangular cross ...
Yun, Chan-Gyu
core +1 more source