| Reference Type | Journal (article/letter/editorial) |
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| Title | Mosasaur tooth marks on the ammonite Placenticeras from the Upper Cretaceous of Alberta, Canada |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Hewitt, R. A. | Author |
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| Westermann, G. E. G. | Author |
| Year | 1990 (March 1) | Volume | 27 |
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| Issue | 3 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e90-042Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 480846 | Long-form Identifier | mindat:1:5:480846:0 |
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| GUID | 0 |
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| Full Reference | Hewitt, R. A., Westermann, G. E. G. (1990) Mosasaur tooth marks on the ammonite Placenticeras from the Upper Cretaceous of Alberta, Canada. Canadian Journal of Earth Sciences, 27 (3) 469-472 doi:10.1139/e90-042 |
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| Plain Text | Hewitt, R. A., Westermann, G. E. G. (1990) Mosasaur tooth marks on the ammonite Placenticeras from the Upper Cretaceous of Alberta, Canada. Canadian Journal of Earth Sciences, 27 (3) 469-472 doi:10.1139/e90-042 |
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| In | (1990, March) Canadian Journal of Earth Sciences Vol. 27 (3) Canadian Science Publishing |
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| Abstract/Notes | Mosasaur tooth marks were found in the body chamber and phragmocone of the Campanian ammonite Placenticeras meeki Boehm from the Bearpaw Formation of the St. Mary River area near Lethbridge. They imply that the shell wall of the ammonite buckled around point loads and did not break into fragments like the shell of Nautilus. The complex septal sutures provided a strong but marginally flexible support for the shell wall. The shells were probably attacked near the surface, perhaps during initial postmortem drift of corpses. |
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