Results 31 to 40 of about 1,568 (192)

Osteology of Khaan mckennai (Oviraptorosauria: Theropoda) [PDF]

open access: yesBulletin of the American Museum of Natural History, 2012
ABSTRACT The monophyly of Oviraptoridae, a group of theropod dinosaurs, which share a uniquely bizarre morphology, has never been called into question due in large part to their unusual complex of characters. Despite a vivid recent history of discovery and broad public appeal the nature of their morphological diversity has not been explored extensively.
Balanoff, Amy M., Norell, Mark A.
openaire   +2 more sources

New theropod (Tetanurae: Avetheropoda) material from the ‘mid’-Cretaceous Griman Greek Formation at Lightning Ridge, New South Wales, Australia [PDF]

open access: yesRoyal Society Open Science, 2019
The limited fossil record of Australian Cretaceous theropods is dominated by megaraptorids, reported from associated and isolated material from the Early Cretaceous of Victoria and the ‘Mid’-Cretaceous of central-north New South Wales and central ...
Tom Brougham   +2 more
doaj   +1 more source

The Biggest Megaraptoridae (Theropoda: Coelurosauria) of South America [PDF]

open access: yes, 2021
Abstract Megaraptorans are a theropod clade distributed in former Gondwana landmasses and Asia. Most members of the clade are known from early Cretaceous to Turonian times whereas Maastrichtian megaraptorans are known just from isolated and poorly informative remains.
Alexis M. Aranciaga Rolando   +5 more
openaire   +1 more source

A Carcharodontosaurid tooth from the Hasandong Formation (Lower Cretaceous) of South Korea

open access: yesMongolian Geoscientist, 2020
A large tooth of theropod dinosaur that was recovered from the Hasandong Formation (Lower Cretaceous; Aptian-Albian) in Daedo island, Hadong Couty, South Gyeongsang Province of South Korea is redescribed.
Chan-gyu Yun
doaj   +1 more source

Bite and tooth marks on sauropod dinosaurs from the Morrison Formation [PDF]

open access: yesPeerJ, 2023
Tooth-marked bones provide important evidence for feeding choices made by extinct carnivorous animals. In the case of the dinosaurs, most bite traces are attributed to the large and robust osteophagous tyrannosaurs, but those of other large carnivores ...
Roberto Lei   +5 more
doaj   +2 more sources

The body plan of Halszkaraptor escuilliei (Dinosauria, Theropoda) is not a transitional form along the evolution of dromaeosaurid hypercarnivory [PDF]

open access: yesPeerJ, 2020
The dromaeosaurid theropod Halszkaraptor escuilliei is characterized by several unusual features absent in other paravians, part of which has been interpreted as diagnostic of a novel lineage adapted to a semiaquatic ecology. Recently, these evolutionary
Andrea Cau
doaj   +2 more sources

A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia [PDF]

open access: yesPeerJ, 2021
The Upper Cretaceous ‘upper’ Winton Formation of Queensland, Australia is world famous for hosting Dinosaur Stampede National Monument at Lark Quarry Conservation Park, a somewhat controversial tracksite that preserves thousands of tridactyl dinosaur ...
Stephen F. Poropat   +7 more
doaj   +2 more sources

Unenlagiid theropods: are they members of the Dromaeosauridae (Theropoda, Maniraptora)? [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2011
In the present paper we analyze the phylogenetic position of the derived Gondwanan theropod clade Unenlagiidae. Although this group has been frequently considered as deeply nested within Deinonychosauria and Dromaeosauridae, most of the features supporting this interpretation are conflictive, at least.
Agnolin, Federico L., Novas, Fernando E.
openaire   +5 more sources

Theropoda

open access: yes, 2018
Published as part of Jonathan P. Tennant, Alfio Alessandro Chiarenza & Matthew Baron, 2018, How has our knowledge of dinosaur diversity through geologic time changed through research history?, pp.
Jonathan P. Tennant   +2 more
openaire   +3 more sources

A new alvarezsaurid dinosaur (Theropoda, Alvarezsauria) from the Upper Cretaceous Baruungoyot Formation of Mongolia provides insights for bird-like sleeping behavior in non-avian dinosaurs

open access: yesPLoS ONE, 2023
Alvarezsauria is a group of early-branching maniraptoran theropods that are distributed globally from the Late Jurassic to the latest Cretaceous. Despite recent increases in the fossil record of this group, the scarcity of complete specimens still ...
Kohta Kubo   +3 more
semanticscholar   +1 more source

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