The new material helps distinguish ichnogenus Koreanaornis from the larger bird track Aquatilavipes, which is more abundant and widespread in North America. In some cases Aquatilavipes has been incorrectly used as a catch-all ichnogenus both in North America and Asia. The Dakota Formation stratigraphy at the tracksite indicates that the track makers lived in a marginal marine paleoenvironment. However, despite the widespread distribution of such facies, often replete with dinosaur tracks, the bird track record of the Dakota Formation, and the Cretaceous of the western USA remains relatively sparse in comparison with other areas such as east Asia.
(a) Department of Geoscience, University of Calgary, Calgary, Alberta, Canada
(b) Dinosaur Tracks Museum, CB 172, University of Colorado at Denver, PO Box 173364, Denver, CO 80217-3364, USA
(c) Department of Earth Science Education, Korea National University of Education, Cheongwon, Chungbuk 363-791, Korea
(d) Department of Science Education, Chinju National University of Education, Shinan-dong, Jinju, Kyungnam 660-756, Korea
Received 27 May 2008; Accepted 2 February 2009
Source Citation:Anfinson, Owen A., Martin G. Lockley, Sam Hyang Kim, Kyung Soo Kim, and Jeong Yul Kim. "First report of the small bird track Koreanaornis from the Cretaceous of North America: implications for avian ichnotaxonomy and paleoecology.(Report)." Cretaceous Research 30.4 (August 2009): 885(10). Academic OneFile. Gale. BROWARD COUNTY LIBRARY. 23 July 2009
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