Tags

Type your tag names separated by a space and hit enter

The oldest dinosaur? A Middle Triassic dinosauriform from Tanzania.
Biol Lett. 2013 Feb 23; 9(1):20120949.BL

Abstract

The rise of dinosaurs was a major event in vertebrate history, but the timing of the origin and early diversification of the group remain poorly constrained. Here, we describe Nyasasaurus parringtoni gen. et sp. nov., which is identified as either the earliest known member of, or the sister-taxon to, Dinosauria. Nyasasaurus possesses a unique combination of dinosaur character states and an elevated growth rate similar to that of definitive early dinosaurs. It demonstrates that the initial dinosaur radiation occurred over a longer timescale than previously thought (possibly 15 Myr earlier), and that dinosaurs and their immediate relatives are better understood as part of a larger Middle Triassic archosauriform radiation. The African provenance of Nyasasaurus supports a southern Pangaean origin for Dinosauria.

Authors+Show Affiliations

Burke Museum and Department of Biology, University of Washington, Seattle, WA 98195, USA. sjn2104@u.washington.eduNo 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

23221875

Citation

Nesbitt, Sterling J., et al. "The Oldest Dinosaur? a Middle Triassic Dinosauriform From Tanzania." Biology Letters, vol. 9, no. 1, 2013, p. 20120949.
Nesbitt SJ, Barrett PM, Werning S, et al. The oldest dinosaur? A Middle Triassic dinosauriform from Tanzania. Biol Lett. 2013;9(1):20120949.
Nesbitt, S. J., Barrett, P. M., Werning, S., Sidor, C. A., & Charig, A. J. (2013). The oldest dinosaur? A Middle Triassic dinosauriform from Tanzania. Biology Letters, 9(1), 20120949. https://doi.org/10.1098/rsbl.2012.0949
Nesbitt SJ, et al. The Oldest Dinosaur? a Middle Triassic Dinosauriform From Tanzania. Biol Lett. 2013 Feb 23;9(1):20120949. PubMed PMID: 23221875.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The oldest dinosaur? A Middle Triassic dinosauriform from Tanzania. AU - Nesbitt,Sterling J, AU - Barrett,Paul M, AU - Werning,Sarah, AU - Sidor,Christian A, AU - Charig,Alan J, Y1 - 2012/12/05/ PY - 2012/12/11/entrez PY - 2012/12/12/pubmed PY - 2013/5/10/medline SP - 20120949 EP - 20120949 JF - Biology letters JO - Biol Lett VL - 9 IS - 1 N2 - The rise of dinosaurs was a major event in vertebrate history, but the timing of the origin and early diversification of the group remain poorly constrained. Here, we describe Nyasasaurus parringtoni gen. et sp. nov., which is identified as either the earliest known member of, or the sister-taxon to, Dinosauria. Nyasasaurus possesses a unique combination of dinosaur character states and an elevated growth rate similar to that of definitive early dinosaurs. It demonstrates that the initial dinosaur radiation occurred over a longer timescale than previously thought (possibly 15 Myr earlier), and that dinosaurs and their immediate relatives are better understood as part of a larger Middle Triassic archosauriform radiation. The African provenance of Nyasasaurus supports a southern Pangaean origin for Dinosauria. SN - 1744-957X UR - https://www.unboundmedicine.com/medline/citation/23221875/The_oldest_dinosaur_A_Middle_Triassic_dinosauriform_from_Tanzania_ L2 - https://royalsocietypublishing.org/doi/10.1098/rsbl.2012.0949?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -