Snap Canyon, USGS 22270-PC: Morrowan, Arizona
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Spiriferida
- Spiriferidae
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Anthracospirifer occiduus
(Sadlick 1960)
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Strophomenata
- Productida
- Linoproductidae
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Linoproductus pumilis
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Linoproductus nodosus
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Strophomenata
- Productida
- Productidae
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Buxtonia sp.
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Strophomenata
- Productida
- Echinoconchidae
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? Pulchratia picuris
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Lingulata
- Lingulida
- Discinidae
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Orbiculoidea cf. missouriensis
(Shumard 1858)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Arizona |
| Coordinates: | 36.2° North, 113.8° West (view map) | ||
| Paleocoordinates: | 1.6° North, 43.9° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Carboniferous | Epoch: | Pennsylvanian |
| Stage: | Bashkirian | 10 m.y. bin: | Carboniferous 4 |
| Key time interval: | Morrowan | ||
| Age range of interval: | 323.20000 - 318.40000 m.y. ago |
Stratigraphy
| Geological group: | Supai | Formation: | Watahomigi | ||
| Local section: | Snap Canyon | ||||
| Regional section: | Grand Canyon | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Watahomigi is comprised of three informal units: a lower slope unit, a middle cliff unit, and an upper slope unit. | |||||
Lithology and environment
| Primary lithology: | coarse,brown,gray "limestone" |
| Includes fossils? | Y |
| Lithology description: Limestone, light-brownish-gray to medium light-gray, coarse-grained, thin-bedded (1 ft); includes near base thick (10 in.) jasper bed; very fossiliferous (brachiopods, pelecypods, others); forms series of weak, rounded ledges. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | USGS |
Metadata
| Also known as: | Snap Canyon, 173 ft above base of formation | ||
| Database number: | 42669 | ||
| Authorizer: | J. Alroy | Enterer: | C. Simpson |
| Modifier: | C. Simpson | Research group: | marine invertebrate |
| Created: | 2004-08-03 16:17:00 | Last modified: | 2004-08-03 19:17:01 |
| Access level: | the public | Released: | 2004-08-03 16:17:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11207. | E. D. McKee. 1982. The Supai Group of the Grand Canyon. United States Geological Survey Professional Paper 1173 [J. Alroy/C. Simpson/C. Simpson] |