OMNH V240, Mussentuchit: Early/Lower Cenomanian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Amphibia
- Temnospondyli
- Albanerpetontidae
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Albanerpetontidae indet.
Fox and Naylor 1982
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Gardner 1999 | 1 specimen | ||||||||
| OMNH 27094 | ||||||||||
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Reptilia
- Polyglyphanodontidae
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Bicuspidon numerosus
Nydam and Cifelli 2002
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Nydam and Cifelli 2002 | |||||||||
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Reptilia
- Teiidae
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Harmodontosaurus emeryensis
Nydam 2002
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Nydam 2002 | |||||||||
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Reptilia
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Dimekodontosaurus madseni
Nydam 2002
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Nydam 2002 | |||||||||
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Mammalia
- Eutriconodonta
- Triconodontidae
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Corviconodon utahensis n. sp.
Cifelli and Madsen 1998
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2 specimens | |||||||||
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Mammalia
- Spalacotheriidae
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Spalacotheridium noblei
Cifelli and Madsen 1999
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Cifelli 1999 | 2 specimens | ||||||||
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Spalacolestes cretulablatta
Cifelli and Madsen 1999
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Cifelli 1999 | 1 specimen | ||||||||
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Mammalia
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? Culicolestes kielanae
Cifelli et al. 2016
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Cifelli et al. 2016 | 1 specimen | ||||||||
| OMNH 25830 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Emery |
| Coordinates: | 39.0° North, 111.0° West (view map) | ||||
| Paleocoordinates: | 40.2° North, 73.1° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Early/Lower Cenomanian | ||
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Formation: | Cedar Mountain | Member: | Mussentuchit | ||
| Local section: | Kaipa | Local bed: | 2 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: A radiometric age of 98.37 ± 0.07 Ma was obtained by the OMNH from volcanic ash within the Mussentuchit Member (Cifelli and others, 1997, 1999). Additional ages by Garrison and others (2007) ranging from 96.7 ± 0.5 to 98.2 ±0.6 Ma indicate that the Mussentuchit Member was deposited over an interval of 1.5 Ma during the early Cenomanian and supports a correlation with the siliceous marine Mowry Shale to the north, which is well-constrained from 40Ar/39Ar sanidine ages obtained from bentonite beds that bracket the Mowry in Wyoming; the basal Arrow Creek Bentonite is 98.5 ± 0.5 Ma and the capping Clay Spur Bentonite is 97.2 ± 0.7 Ma (Obradovich, 1993; Ogg and Hinnov, 2012; Sprinkel and others, 2012) near the base of the Upper Cretaceous. Tucker et al. 2020 also suggested a likely depositional age of ~96-94Ma for the Musseuntuchit member. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 14400 | ||
| Authorizer: | J. Alroy, M. Carrano | Enterer: | J. Alroy, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 1998-09-21 00:00:00 | Last modified: | 2023-08-21 15:51:27 |
| Access level: | the public | Released: | 1998-09-21 00:00:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 1223. | R. L. Cifelli and S. K. Madsen. 1998. Triconodont mammals from the medial Cretaceous of Utah. Journal of Vertebrate Paleontology 18(2):403-411 [J. Alroy/J. Alroy/M. Carrano] |
Secondary references:
| 1213 | R. L. Cifelli. 1999. Therian teeth of unusual design from the mid-Cretaceous (Albian–Cenomanian) Cedar Mountain Formation of Utah. Journal of Mammalian Evolution 6(3):247-270 [J. Alroy/J. Alroy/M. Carrano] | |
| 60386 | R. L. Cifelli, J. E. Cohen, and B. M. Davis. 2016. New tribosphenic mammals from the Mussentuchit Local Fauna (Cedar Mountain Formation, Cenomanian), Utah, USA. Palaeontologia Polonica 67:67-81 [M. Carrano/M. Carrano] | |
| 1227 | R. L. Cifelli, R. L. Nydam, J. D. Gardner, A. Weil, J. G. Eaton, J. I. Kirkland, and S. K. Madsen. 1999. Medial Cretaceous vertebrates from the Cedar Mountain Formation, Emery County, Utah: the Mussentuchit local fauna. In D. D. Gillette (ed.), Vertebrate Paleontology in Utah. Utah Geological Survey Miscellaneous Publication 99-1:219-242 [J. Alroy/J. Alroy/M. Carrano] | |
| 70607 | J. A. Frederickson, M. H. Engel, and R. L. Cifelli. 2018. Niche partitioning in theropod dinosaurs: diet and habitat preference in predators from the uppermost Cedar Mountain Formation (Utah, U.S.A.). Scientific Reports 8(1):17872:1-13 [M. Carrano/M. Carrano] | |
| 6845 | J. D. Gardner. 1999. New albanerpetontid amphibians from the Albian to Coniacian of Utah, USA—bridging the gap. Journal of Vertebrate Paleontology 19(4):632-638 [J. Alroy/J. Alroy/M. Carrano] | |
| 7277 | R. L. Nydam. 2002. Lizards of the Mussentuchit Local Fauna (Albian-Cenomanian boundary) and comments on the evolution of the Cretaceous lizard fauna of North America. Journal of Vertebrate Paleontology 22(3):645-660 [J. Alroy/J. Alroy/J. Alroy] | |
| 6714 | R. L. Nydam and R. L. Cifelli. 2002. A new teiid lizard from the Cedar Mountain Formation (Albian-Cenomanian boundary) of Utah. Journal of Vertebrate Paleontology 22(2):276-285 [J. Alroy/J. Alroy/J. Alroy] |