FHSM VP-13742 locality, Gove County: Late/Upper Coniacian, Kansas
collected 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Mosasauridae
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Tylosaurus kansasensis
Everhart 2005
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Everhart 2005 | |||||||||
| FHSM VP-13742 - large adult, approximately 7m long (weathered and fragmentary skull, including the premaxilla, portions of both maxillae, a complete frontal and both lower jaws [lacking both quadrates], and a few bones from the front limbs). tHE anterior end of the premaxilla had apparently been sheared off by the bite of a shark and the damaged bone shows no evidence of healing | ||||||||||
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cf. Ectenosaurus clidastoides
(Merriam 1894)
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| FHSM VP-13476, 21 articulated dorsal vertebrae and attached ribs | ||||||||||
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Chondrichthyes
- Lamniformes
- Cretoxyrhinidae
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Cretoxyrhina mantelli
(Agassiz 1835)
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Everhart 2005 | |||||||||
| Tips of three shark teeth were embedded in the top of the premaxilla and the lateral side of both dentaries of the Tylosaurus kansasensis skeleton | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Kansas | County: | Gove |
| Coordinates: | 39.0° North, 100.5° West (view map) | ||||
| Paleocoordinates: | 41.1° North, 66.4° West | ||||
| Basis of coordinate: | based on political unit |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Coniacian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Late/Upper Coniacian | ||
| Age range of interval: | 89.80000 - 86.30000 m.y. ago |
Stratigraphy
| Geological group: | Colorado | Formation: | Niobrara | Member: | Smoky Hill Chalk |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | chalk |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Feeding/predation traces: | tooth marks |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | February 1990 |
Metadata
| Also known as: | Tylosaurus kansasensis referred specimen | ||
| Database number: | 118156 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion, J. Tennant |
| Modifier: | M. Carrano | ||
| Created: | 2011-10-06 22:34:21 | Last modified: | 2016-03-10 16:29:39 |
| Access level: | the public | Released: | 2011-10-06 22:34:21 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 44217. | M. J. Everhart. 2004. Late Cretaceous interaction between predators and prey. Evidence of feeding by two species of shark on a mosasaur. PalArch 1(1):1-7 [P. Mannion/J. Tennant] |
Secondary references:
| 38037 | M. J. Everhart. 2005. Tylosaurus kansasensis, a new species of tylosaurine (Squamata, Mosasauridae) from the Niobrara Chalk of western Kansas, USA. Netherlands Journal of Geosciences — Geologie en Mijnbouw 84(3):231-240 [P. Mannion/P. Mannion] |