A new dinosaur, Stegosaurus marshi, from the Lower Cretaceous of South Dakota
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A New Species of Hoplopteryx from the Carlile Formation (cretaceous) of South Dakota
A species of the beryciform fish genus Hoplopteryx, collected from rocks of Turonian Age in the Pool Creek Member of the Carlile Shale Formation, is described from the fossil record of South Dakota for the first time. The specimens are part of the Bishop Collection, now housed in the repository at the South Dakota School of Mines and Technology (SDSM). Despite their geographic distance from the...
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BACKGROUND The theropod dinosaur family Troodontidae is known from the Upper Jurassic, Lower Cretaceous, and Upper Cretaceous of Asia and from the Upper Jurassic and Upper Cretaceous of North America. Before now no undisputed troodontids from North America have been reported from the Early Cretaceous. METHODOLOGY/PRINCIPAL FINDINGS Herein we describe a theropod maxilla from the Lower Cretaceo...
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For the microbiostratigraphical studies, a stratigraphical section (named Dareh-Goshayesh) has been selected in southeast of Maragheh, Northwestern Iran. The thickness of successions in the selected stratigraphic section is measured about 223.6 m. The mentioned studied stratigraphic section is composed of two clastic and carbonate units. This succession unconformably overlies the Lar Formation ...
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Brontomerus mcintoshi is a new genus and species of sauropod dinosaur from the Hotel Mesa Quarry in Grand County, Utah, USA, in the upper part of the Ruby Ranch Member (Aptian–Albian) of the Lower Cretaceous Cedar Mountain For− mation. It is known from at least two fragmentary specimens of different sizes. The type specimen is OMNH 66430, the left ilium of a juvenile individual; tentatively ref...
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ژورنال
عنوان ژورنال: Proceedings of the United States National Museum
سال: 1901
ISSN: 0096-3801
DOI: 10.5479/si.00963801.23-1224.591