期刊
CRETACEOUS RESEARCH
卷 32, 期 2, 页码 135-142出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2010.11.003
关键词
Ichnology; Dinosaur tracks; Winton Formation; Cretaceous; Australia
资金
- Australian Research Council [LP0776851]
- University of Queensland
- Longreach Regional Council
- Carnegie Museum of Natural History
- Australian Research Council [LP0776851] Funding Source: Australian Research Council
Multivariate analysis is used to differentiate shape variations between ichnites of theropod and ornithopod dinosaurs. Tracks of an alleged theropod cf. Tyrannosauropus from the mid-Cretaceous (late Albian-Cenomanian) Winton Formation of Lark Quarry, central-western Queensland, Australia were examined and foot shape ratios calculated. Multivariate analysis of these shape variables indicates this track-maker was an ornithopod dinosaur. A strong morphological similarity exists between the Lark Quarry ichnites and those of the iguanodontian ichnotaxon Amblydactylus gethingi. Considering the grade of ornithopod this ichnogenus is thought to represent (a non-hadrosaurid styracosternan) and the age and geography of Lark Quarry, we suggest that the track-maker may have been a dinosaur similar to Muttaburrasaurus langdoni. (C) 2010 Elsevier Ltd. All rights reserved.
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