OMNH V696, Mussentuchit: Early Cenomanian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Eolambia caroljonesa
Kirkland 1998
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Kirkland 1998 | 2 specimens | ||||||||
| OMNH 27749, sacrum and ischium | ||||||||||
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Primaderma nessovi
Nydam 2000
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Nydam 2000 | |||||||||
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Mammalia
- Eutriconodonta
- Triconodontidae
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Astroconodon delicatus
Cifelli and Madsen 1998
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1 specimen | |||||||||
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Mammalia
- Multituberculata
- Plagiaulacidae
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? Plagiaulacidae indet.
Gill 1872
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Eaton and Cifelli 2001 | 1 specimen | ||||||||
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Mammalia
- Multituberculata
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cf. Paracimexomys perplexus
Eaton and Cifelli 2001
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Eaton and Cifelli 2001 | 1 specimen | ||||||||
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Cedaromys bestia
(Eaton and Nelson 1991)
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Eaton and Cifelli 2001 | 2 specimens | ||||||||
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Mammalia
- Spalacotheriidae
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Spalacotheridium noblei
Cifelli and Madsen 1999
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Cifelli 1999 | 1 specimen | ||||||||
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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 27019 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Emery |
| Coordinates: | 39.0° North, 111.0° West (view map) | ||||
| Paleocoordinates: | 40.3° North, 73.1° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Early Cenomanian | ||
| Age range of interval: | 100.5 - 93.9 m.y. ago |
Stratigraphy
| Geological group: | Dakota | Formation: | Cedar Mountain | Member: | Mussentuchit |
| 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: | selective quarrying,field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 14402 | ||
| 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 15:51:56 |
| 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] | |
| 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] | |
| 6099 | J. G. Eaton and R. L. Cifelli. 2001. Multituberculate mammals from near the Early-Late Cretaceous boundary, Cedar Mountain Formation, Utah. Acta Palaeontologica Polonica 46(4):453-518 [J. Alroy/J. Alroy/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] | |
| 13823 | ETE | J. I. Kirkland. 1998. A new hadrosaurid from the upper Cedar Mountain Formation (Albian-Cenomanian: Cretaceous) of eastern Utah - the oldest known hadrosaurid (lambeosaurine?). Lower and Middle Cretaceous Terrestrial Ecosystems, S. G. Lucas, J. I. Kirkland & J. W. Estep (eds.). New Mexico Museum of Natural History and Science Bulletin 14:283-295 [M. Carrano/M. Carrano/M. Carrano] |
| 78573 | A. T. McDonald, J. Bird, J. I. Kirkland and P. Dodson. 2012. Osteology of the basal hadrosauroid Eolambia caroljonesa (Dinosauria: Ornithopoda) from the Cedar Mountain Formation of Utah. PLoS One 7(10):e45712:1-38 [M. Carrano/M. Carrano] | |
| 6833 | R. L. Nydam. 2000. A new taxon of helodermatid-like lizard from the Albian-Cenomanian of Utah. Journal of Vertebrate Paleontology 20(2):285-294 [J. Alroy/J. Alroy/J. Alroy] |