Ornithopod dinosaur tracks from the lower jurassic of Queensland

Thulborn R.A. (1994) Ornithopod dinosaur tracks from the lower jurassic of Queensland. Alcheringa, 18 3: 247-258. doi:10.1080/03115519408619498


Author Thulborn R.A.
Title Ornithopod dinosaur tracks from the lower jurassic of Queensland
Journal name Alcheringa   Check publisher's open access policy
ISSN 1752-0754
Publication date 1994-01-01
Sub-type Article (original research)
DOI 10.1080/03115519408619498
Volume 18
Issue 3
Start page 247
End page 258
Total pages 12
Subject 1911 Palaeontology
1105 Dentistry
Abstract Natural casts of seven small footprints have been identified on a single weathered block derived from the Precipice Sandstone (Lower Jurassic) of the Carnarvon Gorge, southeastern Queensland. The footprints are attributed to omithopod dinosaurs and are referred to the ichnogenus Anomoepus. They appear to be most similar to the ichnospecies Anomoepus gracillimus, originally defined on footprints from the Lower Jurassic of the northeastern United States. This identification is consistent with the presumed age of the Precipice Sandstone, since Anomoepus or closely related ichnotaxa are common in Leaver Jurassic sediments of the United States, Europe and southern Africa but have never been identified with certainty in Triasac sediments. The tracks described here were made by at least four dinosaurs, all estimated to have been about 30 cm high at the hip and less than 1 -3 m in total length. In their general appearance these animals probably resembled the small plant-eating dinosaur Fabrosaurus (Lesothosaurus), from the Lower Jurassic of southern Africa. Tracks of two animals provide estimates of walking speeds between 0.68 and 0.80 m/s (2.4 and 2.9 km/h). These footprints are the earliest evidence for the existence of omithischian dinosaurs in Australia.
Keyword Australia
Dinosaur tracks
Ichnogenus Anomoepus
Lower Jurassic
Omithischia
Omithopoda
Queensland
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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