Wahweap Wash, UT (U1-29): Cenomanian - Late/Upper Cenomanian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Aporrhaidae
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Drepanocheilus ruidium
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6 specimens | |||||||||
| originally entered as "Drepanochilus ruidium" | ||||||||||
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Bivalvia
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Bivalvia indet.
Linnaeus 1758
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4 specimens | |||||||||
| "infaunal" [originally entered as "Bivalve indet."] | ||||||||||
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Bivalvia
- Solemyida
- Solemyidae
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Solemya obscura
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2 specimens | |||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Lucina sp.
Bruguière 1797
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6 specimens | |||||||||
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Bivalvia
- Myalinida
- Inoceramidae
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Inoceramidae indet.
Giebel 1852
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20 specimens | |||||||||
| originally entered as "informal Inoceramid indet."; changed by JA 21.2.07 | ||||||||||
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Inoceramus pictus
Sowerby 1829
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2 specimens | |||||||||
| recombined as Inoceramus (Inoceramus) pictus | ||||||||||
| "pictus pictus" - originally entered as "Inoceramus pictus pictus" | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostreidae indet.
Rafinesque 1815
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6 specimens | |||||||||
| originally entered as "Oyster indet." | ||||||||||
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Cephalopoda
- Ammonoidea
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Ammonoidea indet.
Zittel 1884
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2 specimens | |||||||||
| "small smooth": originally entered as "Ammonite"; changed by JA 30.6.04 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Kane |
| Coordinates: | 37.1° North, 111.6° West (view map) | ||||
| Paleocoordinates: | 38.5° North, 74.4° West | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| *Period: | Middle Cretaceous - Late/Upper Cretaceous | *Epoch: | Gallic |
| *International age/stage: | Late/Upper Cenomanian - Middle - Late/Upper Cenomanian | ||
| Key time interval: | Cenomanian - Late/Upper Cenomanian | Zone: | Neocardioceras Ammonite |
| Age range of interval: | 100.50000 - 93.90000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Tropic Shale | ||||
| Local section: | U1 | Local bed: | 29 (Unit 30, lower) | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Bed horizon is the sample number not the lithologic unit number. The lithologic unit numbers that correspond to the sample numbers given can be found in reference for collection (Elder, 87). | |||||
Lithology and environment
| Primary lithology: | black,green lithified calcareous "shale" | ||
| Environment: | marine indet. | Tectonic setting: | cratonic basin |
| Geology comments: Shale, marly, mod. well indurated, mod. laminar. Note: Section U1 constitutes interbedded limestones and shales, but this sedimentary structure is not reflected in the descriptions of each collection, as each is often a single bed, or a portion thereof. | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | bulk,mechanical,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Bulk sample disaggregated in lab. | |
Metadata
| Database number: | 3699 | ||
| Authorizer: | C. Marshall | Enterer: | S. Low |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 1999-08-06 15:23:24 | Last modified: | 2017-07-28 16:11:37 |
| Access level: | the public | Released: | 1999-08-06 15:23:24 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 93. | W. P. Elder. 1987. The paleoecology of the Cenomanian-Turonian (Cretaceous) stage boundary extinctions at Black Mesa, Arizona. Palaios 2(1):24-40 [C. Marshall/S. Low/A. Clement] |