Osteology and relationships of Byronosaurus jaffei (Theropoda, Troodontidae)

Related Titles

Series: American Museum novitates, no. 3402

By

Makovicky, Peter J.
Norell, Mark A.
Clark, James Matthew, 1956-
Mongolian-American Museum Paleontological Project.
Mongolyn Shinzhlėkh Ukhaany Akademi.

Type

Book

Material

Published material

Publication info

New York, NY American Museum of Natural History c2003

Notes

Title from caption.

"March 27, 2003."

Holotype specimen collected from the Ankylosaur Flats sublocality at Ukhaa Tolgod; second specimen collected at the Bolor's Hill locality, approximately 6 km west of the main Ukhaa Tolgod exposure; both during the ongoing Mongolian Academy of Sciences-American Museum Paleontological Project.

"The troodontid Byronosaurus jaffei is known from two specimens from adjacent localities in the Nemegt basin, Ömnögov Aimag, Mongolia. These specimens are composed of well-preserved cranial material and fragmentary postcrania. All of these elements are described here. Byronosaurus jaffei is included in a comprehensive phylogenetic analysis of Coelurosauria to ascertain its relationships. Several interesting characters of Byronosaurus jaffei have implications both for theropod relationships and for understanding patterns of variation within coelurosaurian theropods. These include the position of a foramen that marks the exit of the supra-alveolar canal (which we suggest is homologous with the subnarial foramen), the flattened internarial bar, the unusual interfenestral bar, and the unserrated teeth. Additionally, the well-preserved braincase allows detailed comparison with other troodontid taxa"--P. [1].

Subjects

Byronosaurus jaffei , Coeluridae , Cretaceous , Dinosaurs , Mongolia , Omnogov Aimag , Paleontology , Phylogeny , Reptiles, Fossil , Skull , Troodontidae , Ukhaa Tolgod Region

Call Number

QL1 .A436 no.3402, 2003

Language

English

Identifiers

DOI: https://doi.org/10.1206/0003-0082(2003)402<0001:OAROBJ>2.0.CO;2
OCLC: 51962200