An Early Cretaceous ornithopod dinosaur from California

Autor:	Peter U. Rodda, Michael A. Murphy, Richard P. Hilton, Frank L. Decourten, Patrick Embree
Rok vydání:	1997
Předmět:	Canyon geography geography.geographical_feature_category biology Aptian Parksosaurus Paleontology Vertebrate biology.organism_classification Cretaceous Taxon stomatognathic system biology.animal Hypsilophodon Geology Ornithopod
Zdroj:	Journal of Vertebrate Paleontology. 17:557-560
ISSN:	1937-2809 0272-4634
DOI:	10.1080/02724634.1997.10011002
Popis:	Fossils recovered from the late Aptian portion of the Budden Canyon Formation of northern California represent the oldest dinosaur remains known from the Pacific Slope of North America. Eight well-preserved elements, including most of the lower left limb and pes, belong to a small ornithopod dinosaur that is similar to the hypsilophodontids Parksosaurus and Hypsilophodon, although they may represent a new taxon. The late Aptian age, documented by ammonites found in association with the vertebrate remains, suggests that this specimen is probably 20–30 million years older than any dinosaur previously known from the western margin of North America.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::01596d026bcc9853a8629cc69aa84ff7 https://doi.org/10.1080/02724634.1997.10011002 Zobrazit plný text záznamu