UCMP loc. B-1357, Cottonwood Range: Early/Lower Mississippian, California
collected by R. L. Langenheim, Jr., and J. H. Langenheim
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
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Anthozoa indet.
Ehrenberg 1834
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| "unidentified silicified corals" | ||||||||||
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Rhynchonellata
- Athyridida
- Athyrididae
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Composita sp.
Brown 1849
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Rhynchonellata
- Spiriferida
- Spiriferidae
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Spirifer sp.
Sowerby 1818
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Crinoidea
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Crinoidea indet.
Miller 1821
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| "columnals" | ||||||||||
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Conodonta
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Conodonta indet.
()
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Inyo |
| Coordinates: | 36.8° North, 117.5° West (view map) | ||||
| Paleocoordinates: | 9.0° South, 54.4° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Carboniferous | Epoch: | Mississippian |
| Stage: | Tournaisian | 10 m.y. bin: | Carboniferous 1 |
| Key time interval: | Early/Lower Mississippian | ||
| Age range of interval: | 358.90000 - 346.70000 m.y. ago |
Stratigraphy
| Formation: | Tin Mountain | ||||
| Local section: | Tin Mountain Limestone Type Section | Local bed: | 46.8 ft | ||
| Local order: | bottom to top | ||||
| Stratigraphy comments: Lower Tin Mountain limestone. | |||||
Lithology and environment
| Primary lithology: | medium,coarse,shelly/skeletal,black,gray lithified packstone | ||
| Includes fossils? | Y | ||
| Lithology description: Limestone, medium- to coarse-grained ; dark gray to black, weathering dark gray ; massive beds as much as 1 foot thick, nodular bedding planes ; crinoid columnals as much as 0.25 inch in diameter, prominent spiriferid brachiopods. Sample B-1357, 2.5 per cent insoluble residue of gray clay with clear, rounded quartz sand grains and silicified fossil fragments ; texture of fossil frag ments, chiefly columnals, comprising 75 per cent of roek in matrix of fine grained calcite ; no microlaminae. | |||
| Environment: | carbonate indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float) |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | UCMP |
| Collectors: | R. L. Langenheim, Jr., and J. H. Langenheim |
Metadata
| Database number: | 226812 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2022-07-28 18:11:15 | Last modified: | 2022-09-30 14:56:28 |
| Access level: | the public | Released: | 2022-07-28 18:11:15 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 82259. | R. L. Langenheim, Jr. and H. Tischler. 1960. Mississippian and Devonian paleontology and stratigraphy, Quartz Spring area Inyo County, California. University of California Publications in Geological Sciences 38(2):89-152 [J. Marcot/J. Marcot] |