CEUM Loc. #42GR 190v: Valanginian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Dipnoi
- Ceratodontidae
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Dipnoi indet.
Müller 1884
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Kirkland et al. 1998 | 1 specimen | ||||||||
| Kirkland and Lively 2023 | ||||||||||
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Reptilia
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| 3 individuals | ||||||||||
| CEUM 5071, 5072, 5073 | ||||||||||
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= Nedcolbertia justinhoffmanni n. gen., n. sp.
Kirkland et al. 1998
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Kirkland et al. 1998 | |||||||||
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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Kirkland et al. 1998 | 1 specimen | ||||||||
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Chondrichthyes
- Hybodontiformes
- Hybodontidae
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| Kirkland et al. 1998 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Grand |
| Coordinates: | 38.8° North, 109.6° West (view map) | ||||
| Paleocoordinates: | 36.6° North, 44.0° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Valanginian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Valanginian | ||
| Age range of interval: | 137.05 - 132.6 m.y. ago |
Stratigraphy
| Geological group: | Dakota | Formation: | Cedar Mountain | Member: | Yellow Cat |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: base of upper part of member
Detrital zircons from the quarry and adjacent, lateral equivalents provide a maximum depositional age of 125 Ma, indicating the horizon is no older than early Albian (Eberth et al., 2006), but more recent work indicates that the upper part of the Yellow Cat Member is Valanginian (Joeckel et al. 2020) | |||||
Lithology and environment
| Primary lithology: | green,red sandy claystone |
| Includes fossils? | Y |
| Lithology description: "a drab, green-mauve claystone resting directly on a thick nodular calcrete...One-cm-thick partings filled with sand bisect the juvenile specimen...These are interpreted as representing mudcracks." Some barite crystals | |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils,mesofossils |
| Spatial orientation: | random |
| Preservation of anatomical detail: | good |
| Associated major elements: | many |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Taxonomic list comments:Turtle shell; croc teeth; lungfish tooth plates; hybodont shark spine | |
Metadata
| Also known as: | 42Gr190V, Nedcolbertia Site | ||
| Database number: | 52352 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-08-03 15:14:28 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-08-03 15:14:28 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 17025. | ETE | J. I. Kirkland, B. B. Britt, S. K. Madsen and D. Burge. 1995. A small theropod from the basal Cedar Mountain Formation (Lower Cretaceous, Barremian) of eastern Utah. Journal of Vertebrate Paleontology 15(3, suppl.):39A [M. Carrano/M. Carrano] |
Secondary references:
| 14083 | ETE | J. I. Kirkland, B. B. Britt, C. H. Whittle, S. K. Madsen, and D. L. Burge. 1998. A small coelurosaurian theropod from the Yellow Cat Member of the Cedar Mountain Formation (Lower Cretaceous, Barremian) of eastern Utah. In S. G. Lucas, J. I. Kirkland, and J. W. Estep (eds.), Lower and Middle Cretaceous Terrestrial Ecosystems, New Mexico Museum of Natural History and Science Bulletin 14:239-248 [M. Carrano/M. Carrano/M. Carrano] |
| 85049 | J. I. Kirkland and J. R. Lively. 2023. MTE14 Mesozoic of Utah Field Trip 1-92 [M. Carrano/M. Carrano] | |
| 32617 | ETE | J. I. Kirkland and S. K. Madsen. 2007. The Lower Cretaceous Cedar Mountain Formation, Eastern Utah: the view up an always interesting learning curve. Utah Geological Association Publication 35 1-108 [M. Carrano/M. Carrano/M. Carrano] |
| 78389 | J. I. Kirkland, M. B. Suarez, C. A. Suarez and R. K. Hunt-Foster. 2016. The Medial Cretaceous in East-Central Utah—the Cedar Mountain Formation and its Bounding Strata. Society of Vertebrate Paleontology Field Trip Guide. 1-117 [M. Carrano/M. Carrano/M. Uhen] | |
| 50085 | B. A. Swanson, V. L. Santucci, S. K. Madsen, A. S. Elder, and J. P. Kenworthy. 2005. Arches National Park paleontological survey. Geological Resources Division Technical Report NPS/NRGRD/GRDTR-05/01 1-36 [M. Carrano/M. Carrano] |