Relict duck-billed dinosaurs survived into the last age of the dinosaurs in subantarctic Chile. [PDF]
Sci Adv, 2023 In the dusk of the Mesozoic, advanced duck-billed dinosaurs (Hadrosauridae) were so successful that they likely outcompeted other herbivores, contributing to declines in dinosaur diversity. From Laurasia, hadrosaurids dispersed widely, colonizing Africa,
Alarcón-Muñoz J +17 more
europepmc +4 more sources
Calibrating the zenith of dinosaur diversity in the Campanian of the Western Interior Basin by CA-ID-TIMS U-Pb geochronology. [PDF]
Sci Rep, 2022 The spectacular fossil fauna and flora preserved in the Upper Cretaceous terrestrial strata of North America’s Western Interior Basin record an exceptional peak in the diversification of fossil vertebrates in the Campanian, which has been termed the ...
Ramezani J +4 more
europepmc +4 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
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Multiproxy synthesis at the Arlington Archosaur Site: New insights into Cretaceous paralic paleoenvironments and regional stratigraphy, Woodbine Group, Texas, USA [PDF]
SedimentologikaEcosystems of the 'mid' Cretaceous are significant but poorly understood, due in large part to a sparse fossil record. Existing fossils, particularly in North America, are not chronostratigraphically well-constrained, further hampering comparisons of ...
Christopher R. Noto +2 more
doaj +3 more sources
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 +3 more sources
The first duckbill dinosaur (Hadrosauridae: Lambeosaurinae) from Africa and the role of oceanic dispersal in dinosaur biogeography [PDF]
, 2021 The Late Cretaceous saw distinctly endemic dinosaur faunas evolve in the northern and southern hemispheres. The Laurasian continents of North America and Asia were dominated by hadrosaurid and ceratopsian ornithischians, with tyrannosaurs as apex ...
Jalil, Nour Eddine +3 more
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Bentonite geochronology and tephrostratigraphy for litho- and chronostratigraphic refinement of fossiliferous Campanian strata in western North America [PDF]
, 2022 Tegan Beveridge studied weathered volcanic ash horizons within Late Cretaceous rocks in western North America. New high-precision ages and geochemical data facilitated correlation of richly fossiliferous rock units across the continent.
Beveridge, Tegan Louise
core +1 more source
A large hadrosaurid dinosaur from Presa San Antonio, Cerro del Pueblo Formation, Coahuila, Mexico [PDF]
Acta Palaeontologica Polonica, 2021 New hadrosaurid postcranial material is reported, collected near Presa San Antonio, Parras de la Fuente municipality, Coahuila, Mexico, in a sedimentary sequence belonging to the upper Campanian of the Cerro del Pueblo Formation, in the Parras Basin. The
Rogelio Antonio Reyna-Hernández +3 more
doaj +1 more source
A new tyrannosaurid (Dinosauria: Theropoda) from the Upper Cretaceous Menefee Formation of New Mexico. [PDF]
PeerJ, 2018 The giant tyrannosaurids were the apex predators of western North America and Asia during the close of the Cretaceous Period. Although many tyrannosaurid species are known from numerous skeletons representing multiple growth stages, the early evolution ...
McDonald AT, Wolfe DG, Dooley AC.
europepmc +3 more sources