Jurassic Dinosaurs in New Mexico

ASU Author/Contributor (non-ASU co-authors, if there are any, appear on document)
Andrew B. Heckert Ph.D., Professor (Creator)
Appalachian State University (ASU )
Web Site: https://library.appstate.edu/

Abstract: New Mexico has a sparse but growing record of Jurassic dinosaurs. The oldest records are theropod footprints and a sauropod vertebra from the Middle-Upper Jurassic Summerville Formation. The footprints are part of a widespread large theropod-pterosaur ichnofacies in the Summerville and equivalent strata in the southern Western Interior. The sauropod is one of the oldest North American sauropods. The oldest theropod eggshell is from the Upper Jurassic Morrison Formation in New Mexico. Most New Mexican Jurassic dinosaurs are from the Upper Jurassic Morrison Formation and include Apatosaurus, Diplodocus carnegiei, Diplodocus (=Seismosaurus) hallorum, Camarasaurus, Allosaurus, and Stegosaurus. These dinosaurs are part of a homogenous Morrison dinosaur chronofauna found throughout the Western Interior and characteristic of the Comobluffian land-vertebrate faunachron.

Additional Information

Lucas, S.G., and Heckert, A.B., (2000) Jurassic dinosaurs in New Mexico. New Mexico Museum of Natural History and Science Bulletin 17 (Dinosaurs of New Mexico), p. 43-45. (ISSN 1524-4156) Archived in NC DOCKS with permission of the editor. The version of record is available at: http://econtent.unm.edu/
Language: English
Date: 2000

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