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A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China.
Science. 2010 Jan 29; 327(5965):571-4.Sci

Abstract

The fossil record of Jurassic theropod dinosaurs closely related to birds remains poor. A new theropod from the earliest Late Jurassic of western China represents the earliest diverging member of the enigmatic theropod group Alvarezsauroidea and confirms that this group is a basal member of Maniraptora, the clade containing birds and their closest theropod relatives. It extends the fossil record of Alvarezsauroidea by 63 million years and provides evidence for maniraptorans earlier in the fossil record than Archaeopteryx. The new taxon confirms extreme morphological convergence between birds and derived alvarezsauroids and illuminates incipient stages of the highly modified alvarezsaurid forelimb.

Authors+Show Affiliations

Department of Biological Sciences, The George Washington University, Washington, DC 20052, USA. jonah.choiniere@gmail.comNo 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

20110503

Citation

Choiniere, Jonah N., et al. "A Basal Alvarezsauroid Theropod From the Early Late Jurassic of Xinjiang, China." Science (New York, N.Y.), vol. 327, no. 5965, 2010, pp. 571-4.
Choiniere JN, Xu X, Clark JM, et al. A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China. Science. 2010;327(5965):571-4.
Choiniere, J. N., Xu, X., Clark, J. M., Forster, C. A., Guo, Y., & Han, F. (2010). A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China. Science (New York, N.Y.), 327(5965), 571-4. https://doi.org/10.1126/science.1182143
Choiniere JN, et al. A Basal Alvarezsauroid Theropod From the Early Late Jurassic of Xinjiang, China. Science. 2010 Jan 29;327(5965):571-4. PubMed PMID: 20110503.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A basal alvarezsauroid theropod from the early Late Jurassic of Xinjiang, China. AU - Choiniere,Jonah N, AU - Xu,Xing, AU - Clark,James M, AU - Forster,Catherine A, AU - Guo,Yu, AU - Han,Fenglu, PY - 2010/1/30/entrez PY - 2010/1/30/pubmed PY - 2010/2/18/medline SP - 571 EP - 4 JF - Science (New York, N.Y.) JO - Science VL - 327 IS - 5965 N2 - The fossil record of Jurassic theropod dinosaurs closely related to birds remains poor. A new theropod from the earliest Late Jurassic of western China represents the earliest diverging member of the enigmatic theropod group Alvarezsauroidea and confirms that this group is a basal member of Maniraptora, the clade containing birds and their closest theropod relatives. It extends the fossil record of Alvarezsauroidea by 63 million years and provides evidence for maniraptorans earlier in the fossil record than Archaeopteryx. The new taxon confirms extreme morphological convergence between birds and derived alvarezsauroids and illuminates incipient stages of the highly modified alvarezsaurid forelimb. SN - 1095-9203 UR - https://www.unboundmedicine.com/medline/citation/20110503/A_basal_alvarezsauroid_theropod_from_the_early_Late_Jurassic_of_Xinjiang_China_ L2 - https://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=20110503 DB - PRIME DP - Unbound Medicine ER -