WahweapWash, UT (U1-18): Late/Upper Cenomanian, Utah
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
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Bivalvia indet.
Linnaeus 1758
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6 specimens | |||||||||
"infaunal" [originally entered as "Bivalve indet."] | ||||||||||
Bivalvia
- Myalinida
- Inoceramidae
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Inoceramidae indet.
Giebel 1852
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18 specimens | |||||||||
originally entered as "informal Inoceramid indet."; changed by JA 21.2.07 | ||||||||||
Inoceramus ? tenuistriatus
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3 specimens | |||||||||
"tenuistriatus (?)" - originally entered as "Inoceramus tenuistriatus (?)" | ||||||||||
Inoceramus pictus
Sowerby 1829
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2 specimens | |||||||||
recombined as Inoceramus (Inoceramus) pictus | ||||||||||
"pictus pictus" - originally entered as "Inoceramus pictus pictus" | ||||||||||
Mytiloides aff. submytiloides
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1 specimen | |||||||||
"aff. M. submytiloides" - originally entered as "Mytiloides aff. M. submytiloides" | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostreidae indet.
Rafinesque 1815
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17 specimens | |||||||||
originally entered as "Oyster spat " | ||||||||||
Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte newberryi
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21 specimens | |||||||||
Exogyra acroumbonata
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1 specimen | |||||||||
Bivalvia
- Lucinida
- Lucinidae
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Lucina sp.
Bruguière 1797
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6 specimens | |||||||||
Cephalopoda
- Ammonitida
- Acanthoceratidae
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Neocardioceras sp.
Spath 1926
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3 specimens | |||||||||
Gastropoda
- Turritellidae
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Turritella sp.
Lamarck 1799
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2 specimens | |||||||||
Gastropoda
- Aporrhaidae
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Drepanocheilus ruidium
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82 specimens | |||||||||
originally entered as "Drepanochilus ruidium" | ||||||||||
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 - Late/Upper Cenomanian | ||
Key time interval: | 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: | 18 (Unit 21, 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: Claystone, slightly silty, mod. indurated, poorly 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: | 3687 | ||
Authorizer: | C. Marshall | Enterer: | S. Low |
Modifier: | M. Clapham | Research group: | marine invertebrate |
Created: | 1999-08-06 13:21:18 | Last modified: | 2017-07-28 16:08:07 |
Access level: | the public | Released: | 1999-08-06 13:21:18 |
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] |