A Troodontid Dinosaur from Ukhaa Tolgod (Late Cretaceous Mongolia)

MARK A. NORELL; SUNNY H. HWANG

doi:10.1206/0003-0082(2004)446<0001:ATDFUT>2.0.CO;2

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2 June 2004 A Troodontid Dinosaur from Ukhaa Tolgod (Late Cretaceous Mongolia)

MARK A. NORELL, SUNNY H. HWANG

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American Museum Novitates, 2004(3446):1-9 (2004). https://doi.org/10.1206/0003-0082(2004)446<0001:ATDFUT>2.0.CO;2

Abstract

Here we describe a fragmentary troodontid specimen from the sublocality of Grangers Flats at the Late Cretaceous locality of Ukhaa Tolgod, Omnogov, Mongolia. This specimen is provisionally referred to the coeval Saurornithoides mongoliensis. IGM 100/1083 displays a pattern of tooth replacement that is like that of basal avialans. The presence of this pattern in avialans has been used by some to refute a theropod origin for this group.

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MARK A. NORELL and SUNNY H. HWANG "A Troodontid Dinosaur from Ukhaa Tolgod (Late Cretaceous Mongolia)," American Museum Novitates 2004(3446), 1-9, (2 June 2004). https://doi.org/10.1206/0003-0082(2004)446<0001:ATDFUT>2.0.CO;2

Published: 2 June 2004

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