Evolution and Diversity of Ornithomimid Dinosaurs in the Upper Cretaceous Belly River Group of Alberta [PDF]
, 2015 Ornithomimids from the Upper Cretaceous Belly River Group are among the best known theropods from these deposits, but questions remain concerning the oldest definitive occurrence of these dinosaurs in Alberta, as well as the taxonomic diversity of the ...
McFeeters, Bradley
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New insights into chasmosaurine (Dinosauria: Ceratopsidae) skulls from the Upper Cretaceous (Campanian) of Alberta, and an update on the distribution of accessory frill fenestrae in Chasmosaurinae [PDF]
PeerJ, 2018 Chasmosaurine ceratopsids are well documented from the Upper Cretaceous (Campanian) Dinosaur Park Formation (DPF) of southern Alberta and Saskatchewan, and include Chasmosaurus belli, Chasmosaurus russelli, Mercuriceratops gemini, Vagaceratops irvinensis,
James A. Campbell +4 more
doaj +2 more sources
A new late-surviving early diverging Ibero-Armorican duck-billed dinosaur and the role of the Late Cretaceous European Archipelago in hadrosauroid biogeography [PDF]
, 2021 The anatomy and phylogenetic systematics of a well preserved hadrosauroid dentary collected in the 1990s from uppermost Maastrichtian strata (within chron C29r) of the Figuerola Formation, in the Àger syncline of the southern Pyrenees in northeastern ...
Carrera Farias, Miguel Ángel +1 more
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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
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The oldest record of North American Lychnothamnus (northeastern Sonora, Mexico): Implications for the evolution, ecology, and paleogeographic distribution of the genus [PDF]
, 2020 A large population of Late Cretaceous Lychnothamnus tenuis holding small sized gyrogonites are described after systematically sampling the Fronteras section in the Cabullona Group (northeastern Sonora, Mexico). This discovery represents the oldest record
Eaton, Jeffrey G. +3 more
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Vertebrate Anatomy, Morphology, Palaeontology, 2019 The Dinosaur Park Formation (DPF) has a diverse assemblage of chasmosaurines currently represented by Chasmosaurus belli, C. russelli, Vagaceratops irvinensis, and Mercuriceratops gemini, and may also include remains possibly referable to Spiclypeus ...
James Alexander Campbell +4 more
doaj +3 more sources
, 2013 thesisRecent discoveries demonstrate that Campanian dinosaur assemblages across the western North American subcontinent (Laramidia) exhibit basin-scale endemism, with each sedimentary basin possessing its own unique assemblage, and an apparent higher ...
Lively, Joshua Ryan
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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
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Expanded concept of the milliped family Spirobolidae (Diplopoda: Spirobolida: Spirobolidea): Proposals of Aztecolini n. tribe and Floridobolinae/ini and Tylobolini n. stats.; re)descriptions of Floridobolus and F. penneri, both Causey, 1957, and F. orini n. sp.; hypotheses on origins and affinities [PDF]
, 2014 The endemic Floridian milliped genus, Floridobolus Causey, 1957, more closely related to tylobolinines in the western United States (US), Mexico, and Guatemala than syntopic spirobolines, is incorporated into Spirobolidae (Spirobolida: Spirobolidea ...
Floyd, Samuel D., Shelley, Rowland M.
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DiversityThe Late Cretaceous of Western North America (Laramidia) supported a diverse dinosaur fauna, with duckbilled dinosaurs (Hadrosauridae) being among the most speciose and abundant members of this assemblage.
Nicholas R. Longrich +4 more
doaj +1 more source