Catherine A. Forster

Publications65
h-index33
Citations3,510
Highly Influential Citations479
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The Ischigualasto Tetrapod Assemblage (Late Triassic, Argentina) and 40Ar/39Ar Dating of Dinosaur Origins
TLDR
Dating of sanidine from a bentonite interbedded in the Ischigualasto Formation of northwestern Argentina yielded a plateau age of 227.8 � 0.3 million years ago, diminishing the magnitude of the proposed late Carnian tetrapod extinction event.
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THE OSTEOLOGY OF MASIAKASAURUS KNOPFLERI, A SMALL ABELISAUROID (DINOSAURIA: THEROPODA) FROM THE LATE CRETACEOUS OF MADAGASCAR
TLDR
The osteology of the new small theropod dinosaur Masiakasaurus knopfleri, from the Late Cretaceous Maevarano Formation of northwestern Madagascar, suggests that these taxa form a clade (Noasauridae) within Abelisauroidea.
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Primitive dinosaur skeleton from Argentina and the early evolution of Dinosauria
TLDR
The discovery of Eoraptor supports the hypothesis that dinosaurs diverged rapidly at small body size from a common ancestor, with the principal herbivorous and carnivorous lineages present by the middle Carnian.
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The last of the dinosaur titans: a new sauropod from Madagascar
TLDR
A total-evidence phylogenetic analysis supports a close relationship between brachiosaurids and titanosaurs (Titanosauriformes), and the inclusion of cranial data from Rapetosaurus lays to rest questions concerning the phylogeny of the enigmatic Mongolian genera Nemegtosaurus and Quaesitosaurus.
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A basal ceratopsian with transitional features from the Late Jurassic of northwestern China
TLDR
Character distributions along the marginocephalian lineage reveal that, compared to the bipedal Pachycephalosauria, the dominantly quadrupedal ceratopsians lost many marginocesphalian features and evolved their own characters early in their evolution.
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New Horned Dinosaurs from Utah Provide Evidence for Intracontinental Dinosaur Endemism
TLDR
Two new, co-occurring ceratopsids from the Upper Cretaceous Kaiparowits Formation of Utah are described that provide the strongest support to date for the dinosaur provincialism hypothesis and further suggest the presence of latitudinally arrayed evolutionary centers of endemism within chasmosaurine cer atopsids during the late Campanian.
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The postcranial skeleton of the ornithopod dinosaur Tenontosaurus tilletti
ABSTRACT Tenontosaurus tilletti is a moderate-sized ornithopod dinosaur from the Lower Cretaceous (Aptian–Albian) Cloverly Formation in Montana and Wyoming. Tenontosaurus remains are abundant. The…
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A Jurassic ceratosaur from China helps clarify avian digital homologies
TLDR
A new basal Ceratosaur from the Oxfordian stage of the Jurassic period of China is reported, representing the first known Asian ceratosaur and the only known beaked, herbivorous Jurassic theropod, and possesses a strongly reduced manual digit I, documenting a complex pattern of digital reduction within the Theropoda.
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THE SKULL OF RAPETOSAURUS KRAUSEI (SAUROPODA: TITANOSAURIA) FROM THE LATE CRETACEOUS OF MADAGASCAR
Abstract Rapetosaurus krausei (Sauropoda: Titanosauria) from the Upper Cretaceous Maevarano Formation of Madagascar is the best-preserved and most complete titanosaur yet described. The skull of…
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A basal tyrannosauroid dinosaur from the Late Jurassic of China
The tyrannosauroid fossil record is mainly restricted to Cretaceous sediments of Laurasia, although some very fragmentary Jurassic specimens have been referred to this group. Here we report a new…
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