A king-sized theropod coprolite
Nature
By: K. Chin, T.T. Tokaryk, G.M. Erickson, and L. C. Calk
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Abstract
Fossil faeces (coprolites) provide unique trophic perspectives on ancient ecosystems. Yet, although thousands of coprolites have been discovered, specimens that can be unequivocally attributed to carnivorous dinosaurs are almost unknown. A few fossil faeces have been ascribed to herbivorous dinosaurs, but it is more difficult to identify coprolites produced by theropods because other carnivorous taxa coexisted with dinosaurs and most faeces are taxonomically ambiguous. Thus sizeable (up to 20 cm long and 10 cm wide) phosphatic coprolites from Belgium and India that have been attributed to dinosaurs might have been produced by contemporaneous crocodylians or fish. But there is no ambiguity about the theropod origin of the Cretaceous coprolite we report here. This specimen is more than twice as large as any previously reported carnivore coprolite, and its great size and temporal and geographic context indicate that it was produced by a tyrannosaur, most likely Tyrannosaurus rex. The specimen contains a high proportion (30-50%) of bone fragments, an it rare tangible evidence of theropod diet and digestive processes.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A king-sized theropod coprolite |
| Series title | Nature |
| DOI | 10.1038/31461 |
| Volume | 393 |
| Issue | 6686 |
| Year Published | 1998 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Nature |
| First page | 680 |
| Last page | 682 |
| Google Analytic Metrics | Metrics page |