A remarkable short-snouted horned dinosaur from the Late Cretaceous (late Campanian) of southern Laramidia [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2013 The fossil record of centrosaurine ceratopsids is largely restricted to the northern region of western North America (Alberta, Montana and Alaska). Exceptions consist of single taxa from Utah ( Diabloceratops ) and China ( Sinoceratops ), plus otherwise fragmentary remains from the southern ...
Sampson, Scott D. +4 more
europepmc +6 more sources
Geology and taphonomy of a unique tyrannosaurid bonebed from the upper Campanian Kaiparowits Formation of southern Utah: implications for tyrannosaurid gregariousness [PDF]
PeerJ, 2021 Tyrannosaurids are hypothesized to be gregarious, possibly parasocial carnivores engaging in cooperative hunting and extended parental care. A tyrannosaurid (cf.
Alan L. Titus +8 more
doaj +6 more sources
The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada. [PDF]
PLoS ONE, 2022 The Wapiti Formation of northwest Alberta and northeast British Columbia, Canada, preserves an Upper Cretaceous terrestrial vertebrate fauna that is latitudinally situated between those documented further north in Alaska and those from southern Alberta ...
Nathan J Enriquez +7 more
doaj +5 more sources
A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico. [PDF]
PLoS ONE, 2016 While centrosaurines and ceratopsids in general are abundant in the Late Campanian of northern Laramidia, they are much less commonly found in southern Laramidia. This has supported hypotheses of dinosaur provinciality and endemism in the Late Cretaceous
Héctor E Rivera-Sylva +2 more
doaj +4 more sources
The first reported ceratopsid dinosaur from eastern North America (Owl Creek Formation, Upper Cretaceous, Mississippi, USA) [PDF]
PeerJ, 2017 Ceratopsids (“horned dinosaurs”) are known from western North America and Asia, a distribution reflecting an inferred subaerial link between the two landmasses during the Late Cretaceous.
Andrew A. Farke, George E. Phillips
doaj +8 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 +7 more sources
Lokiceratops rangiformis gen. et sp. nov. (Ceratopsidae: Centrosaurinae) from the Campanian Judith River Formation of Montana reveals rapid regional radiations and extreme endemism within centrosaurine dinosaurs [PDF]
PeerJThe Late Cretaceous of western North America supported diverse dinosaur assemblages, though understanding patterns of dinosaur diversity, evolution, and extinction has been historically limited by unequal geographic and temporal sampling.
Mark A. Loewen +10 more
doaj +6 more sources
New horned dinosaurs from Utah provide evidence for intracontinental dinosaur endemism. [PDF]
PLoS ONE, 2010 BackgroundDuring much of the Late Cretaceous, a shallow, epeiric sea divided North America into eastern and western landmasses. The western landmass, known as Laramidia, although diminutive in size, witnessed a major evolutionary radiation of dinosaurs ...
Scott D Sampson +6 more
doaj +4 more sources
Tyrant dinosaur evolution tracks the rise and fall of Late Cretaceous oceans. [PDF]
PLoS ONE, 2013 The Late Cretaceous (∼95-66 million years ago) western North American landmass of Laramidia displayed heightened non-marine vertebrate diversity and intracontinental regionalism relative to other latest Cretaceous Laurasian ecosystems.
Mark A Loewen +4 more
doaj +4 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 ...
Eric K Lund +3 more
doaj +6 more sources