A caenagnathid tibia (Theropoda: Oviraptorosauria) from the upper Campanian Kirtland Formation of New Mexico [PDF]
Caenagnathid oviraptorosaurian dinosaurs, long considered enigmas, have now become relatively easy to recognize in the fossil record of Asia and North America. This has revealed their presence in several formations spanning the Late Cretaceous, providing
Brusatte, Steve +2 more
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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
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A Hadrosaurid (Dinosauria: Ornithischia) from the Late Cretaceous (Campanian) Kanguk Formation of Axel Heiberg Island, Nunavut, Canada, and Its Ecological and Geographical Implications [PDF]
, 2014 A hadrosaurid vertebra was recovered during a palynological survey of the Upper Cretaceous Kanguk Formation in the eastern Canadian Arctic. This vertebra represents the farthest north record of any non-avian dinosaur to date. Although highly abraded, the
Currie, Philip J. +2 more
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Late-surviving New Mexican dinosaurs illuminate high end-Cretaceous diversity and provinciality [PDF]
It has long been debated whether non-avian dinosaurs went extinct abruptly or gradually at the end-Cretaceous (66 million years ago), because their fossil record at this time is mostly limited to northern North America.
Brusatte, Stephen L. +12 more
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A Multidisciplinary Palaeoenvironmental Reconstruction of the Campanian Foremost Formation of Southern Alberta [PDF]
, 2018 The Foremost Formation of southern Alberta is the basal member of the Campanian Belly River Group, and has been understudied relative to the overlying Oldman and Dinosaur Park formations of this group.
Thompson, Michael Glen Wenstob
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First examination of palynolgy across the K-Pg Boundary in the Jackson Purchase region of Kentucky [PDF]
, 2023 This study examines the Independence School section of the K-Pg Boundary, which is located in a creek cutbank exposure in Carlisle County, in the Jackson Purchase region of Kentucky.
Asselta, Jarred +6 more
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PLoS ONE, 2014 Megaherbivorous dinosaurs were exceptionally diverse on the Late Cretaceous island continent of Laramidia, and a growing body of evidence suggests that this diversity was facilitated by dietary niche partitioning. We test this hypothesis using the fossil
Jordan C Mallon, Jason S Anderson
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A Re-evaluation of the Chasmosaurine Ceratopsid Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of Western Canada [PDF]
, 2014 The chasmosaurine ceratopsid Chasmosaurus is known from the Upper Cretaceous Dinosaur Park Formation (DPF) of southern Alberta and Saskatchewan. The two species, Chasmosaurus belli and Chasmosaurus russelli, are distinguished by differences in cranial ...
Campbell, James Alexander
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Phylogenetic and biogeographic reconstruction of Lamiini sensu lato (Coleoptera, Cerambycidae) reveals South Gondwanan origin and Panthalasso-Tethyan dispersal pathways [PDF]
In this study I conduct the phylogenetic and biogeographical analysis of Lamiini sensu novo (Coleoptera, Cerambycidae, Lamiinae), confirming it as a monophyletic group that is broader than previously assumed and supporting the redefinition of it as a ...
Zamoroka, A. M.
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A mid-Cretaceous tyrannosauroid and the origin of North American end-Cretaceous dinosaur assemblages [PDF]
, 2019 Late Cretaceous dinosaur assemblages of North America—characterized by gigantic tyrannosaurid predators, and large-bodied herbivorous ceratopsids and hadrosaurids—were highly successful from around 80 million years ago (Ma) until the end of the ‘Age of ...
Brusatte, Stephen +8 more
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