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A complete skeleton of a Late Triassic saurischian and the early evolution of dinosaurs.
Science. 2009 Dec 11; 326(5959):1530-3.Sci

Abstract

Characterizing the evolutionary history of early dinosaurs is central to understanding their rise and diversification in the Late Triassic. However, fossils from basal lineages are rare. A new theropod dinosaur from New Mexico is a representative of the early North American diversification. Known from several nearly complete skeletons, it reveals a mosaic of plesiomorphic and derived features that clarify early saurischian dinosaur evolution and provide evidence for the antiquity of novel avian character systems including skeletal pneumaticity. The taxon further reveals latitudinal differences among saurischian assemblages during the Late Triassic, demonstrates that the theropod fauna from the Late Triassic of North America was not endemic, and suggests that intercontinental dispersal was prevalent during this time.

Authors+Show Affiliations

Division of Paleontology, American Museum of Natural History, New York, NY 10024, USA. nesbitt@jsg.utexas.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

20007898

Citation

Nesbitt, Sterling J., et al. "A Complete Skeleton of a Late Triassic Saurischian and the Early Evolution of Dinosaurs." Science (New York, N.Y.), vol. 326, no. 5959, 2009, pp. 1530-3.
Nesbitt SJ, Smith ND, Irmis RB, et al. A complete skeleton of a Late Triassic saurischian and the early evolution of dinosaurs. Science. 2009;326(5959):1530-3.
Nesbitt, S. J., Smith, N. D., Irmis, R. B., Turner, A. H., Downs, A., & Norell, M. A. (2009). A complete skeleton of a Late Triassic saurischian and the early evolution of dinosaurs. Science (New York, N.Y.), 326(5959), 1530-3. https://doi.org/10.1126/science.1180350
Nesbitt SJ, et al. A Complete Skeleton of a Late Triassic Saurischian and the Early Evolution of Dinosaurs. Science. 2009 Dec 11;326(5959):1530-3. PubMed PMID: 20007898.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A complete skeleton of a Late Triassic saurischian and the early evolution of dinosaurs. AU - Nesbitt,Sterling J, AU - Smith,Nathan D, AU - Irmis,Randall B, AU - Turner,Alan H, AU - Downs,Alex, AU - Norell,Mark A, PY - 2009/12/17/entrez PY - 2009/12/17/pubmed PY - 2010/1/13/medline SP - 1530 EP - 3 JF - Science (New York, N.Y.) JO - Science VL - 326 IS - 5959 N2 - Characterizing the evolutionary history of early dinosaurs is central to understanding their rise and diversification in the Late Triassic. However, fossils from basal lineages are rare. A new theropod dinosaur from New Mexico is a representative of the early North American diversification. Known from several nearly complete skeletons, it reveals a mosaic of plesiomorphic and derived features that clarify early saurischian dinosaur evolution and provide evidence for the antiquity of novel avian character systems including skeletal pneumaticity. The taxon further reveals latitudinal differences among saurischian assemblages during the Late Triassic, demonstrates that the theropod fauna from the Late Triassic of North America was not endemic, and suggests that intercontinental dispersal was prevalent during this time. SN - 1095-9203 UR - https://www.unboundmedicine.com/medline/citation/20007898/A_complete_skeleton_of_a_Late_Triassic_saurischian_and_the_early_evolution_of_dinosaurs_ L2 - https://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=20007898 DB - PRIME DP - Unbound Medicine ER -