East bank of St. Mary River, south of Lethbridge: Late/Upper Campanian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Osteichthyes
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Osteichthyes indet.
Huxley 1880
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| centrum (gut contents of Prognathodon overtoni) | ||||||||||
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Actinopteri
- Aulopiformes
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Aulopiformes indet.
Rosen 1973
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Konishi et al. 2014 | |||||||||
| TMP 2008.036.0006 | ||||||||||
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= Ursichthys longiparietalis n. gen., n. sp.
Newbrey and Konishi 2015
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Newbrey and Konishi 2015 | |||||||||
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Actinopteri
- Elopiformes
- Elopidae
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Elopidae indet.
Bonaparte 1846
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| two centra (gut contents of Prognathodon overtoni) | ||||||||||
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Reptilia
- Mosasauridae
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Prognathodon overtoni
(Williston 1897)
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1 individual | |||||||||
| TMP 2007.034.0001 (complete skull and largely articulated postcranium lacking paddles) | ||||||||||
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Mosasaurus missouriensis
(Harlan 1834)
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Konishi et al. 2014 | |||||||||
| TMP 2008.036.0001 and TMP 2003.400.0001 | ||||||||||
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Reptilia
- Testudines
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Nichollsemys baieri
Brinkman et al. 2006
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| jugal, a postorbital, a quadrate, and a supraoccipital (gut contents of Prognathodon overtoni) | ||||||||||
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Chondrichthyes
- Lamniformes
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Lamniformes indet.
Berg 1958
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Konishi et al. 2014 | |||||||||
| TMP 2008.036.0003, | ||||||||||
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Chondrichthyes
- Lamniformes
- Anacoracidae
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Squalicorax sp.
Whitley 1939
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| 4 teeth, including TMP 2008.036.004 and 2008.036.005 | ||||||||||
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Cephalopoda
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Cephalopoda indet.
Cuvier 1797
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| putative cephalopod jaw fragment | ||||||||||
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Malacostraca
- Decapoda
- Nephropidae
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Nephropidae indet.
Dana 1852
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| a lobster claw was also found near the left 10th dorsal rib of the mosasaur | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Alberta |
| Coordinates: | 49.7° North, 112.8° West (view map) | ||
| Paleocoordinates: | 57.4° North, 78.2° West | ||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Formation: | Bearpaw Shale | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 15 m above the base of the Formation; likely that the age of the two mosasaurs is no younger than 74 Ma | |||||
Lithology and environment
| Primary lithology: | not reported |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | TMP |
Metadata
| Also known as: | Welling | ||
| Database number: | 119088 | ||
| Authorizer: | P. Mannion, M. Clapham | Enterer: | P. Mannion, M. Clapham |
| Modifier: | P. Mannion | ||
| Created: | 2011-10-20 20:48:40 | Last modified: | 2018-06-14 12:21:19 |
| Access level: | the public | Released: | 2011-10-20 20:48:40 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 38254. | T. Konishi, D. Brinkman, J. A. Massare and M. W. Caldwell. 2011. New exceptional specimens of Prognathodon overtoni (Squamata, Mosasauridae) from the upper Campanian of Alberta, Canada, and the systematics and ecology of the genus. Journal of Vertebrate Paleontology 31(5):1026-1046 [P. Mannion/P. Mannion/M. Uhen] |
Secondary references:
| 65941 | T. Konishi, M. G. Newbrey, and M. W. Caldwell. 2014. A small, exquisitely preserved specimen of Mosasaurus missouriensis (Squamata, Mosasauridae) from the upper Campanian of the Bearpaw Formation, western Canada, and the first stomach contents for the genus. Journal of Vertebrate Paleontology 34(4):802-819 [P. Mannion/P. Mannion] | |
| 77404 | M. G. Newbrey and T. Konishi. 2015. A new lizardfish (Teleostei, Aulopiformes) from the Late Cretaceous Bearpaw Formation of Alberta, Canada, with a revised diagnosis of Apateodus (Aulopiformes, Ichthyotringoidei). Journal of Vertebrate Paleontology 35(e918042) [M. Clapham/M. Clapham] |