USGS "blue file" Loc. 13424: Serpukhovian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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? Koninkophyllum sp.
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Anthozoa
- Stauriida
- Cyathopsidae
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Caninia montanensis n. sp.
Easton 1962
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Ostracoda
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Ostracoda indet.
Latreille 1802
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Strophomenata
- Orthotetida
- Orthotetidae
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Orthotetes (Orthotetes) sp.
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| sgn. (Orthotetes) | ||||||||||
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Strophomenata
- Productida
- Linoproductidae
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Linoproductus nodosus
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| n. ssp. | ||||||||||
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Linoproductus sp.
(Chao 1927)
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Strophomenata
- Productida
- Echinoconchidae
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Echinoconchus aff. alternatus
(Norwood and Pratten 1855)
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Rhynchonellata
- Spiriferinida
- Reticulariinidae
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Reticulariina spinosa
(Norwood and Pratten 1855)
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Rhynchonellata
- Athyridida
- Athyrididae
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Composita sulcata
Weller 1914
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Rhynchonellata
- Spiriferida
- Spiriferidae
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Spirifer cf. curvilateralis
Easton 1962
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| recombined as Anthracospirifer curvilateralis | ||||||||||
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Bivalvia
- Ostreida
- Pinnidae
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Sulcatopinna ludlovi
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| spelled with current rank as Pinna (Sulcatopinna) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Golden Valley |
| Coordinates: | 46.7° North, 109.1° West (view map) | ||||
| Paleocoordinates: | 3.9° North, 36.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Carboniferous | Epoch: | Mississippian |
| Stage: | Serpukhovian | 10 m.y. bin: | Carboniferous 3 |
| *Period: | Early/Lower Carboniferous | *Epoch: | Serpukhovian | *Local age/stage: | Late/Upper Chesterian |
| Key time interval: | Serpukhovian | ||
| Age range of interval: | 330.90000 - 323.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Heath | ||||
| Local section: | Easton Big Snowy group section #7 | Local bed: | 46 | ||
| Local order: | top to bottom | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Lower Heath. JA: late Chesterian is Serpukhovian according to Mii et al. 1999 (GSA Bull 111:960-973) | |||||
Lithology and environment
| Primary lithology: | black,gray lithified calcareous "limestone" | ||
| Secondary lithology: | siltstone | ||
| Lithology description: limestone, dark gray to black, dense to finely crystalline, well bedded, locally laminated, 2ft layer 3ft above base is siltstone, gray calcareous, shaly, poorly exposed. | |||
| Environment: | offshore | Tectonic setting: | cratonic basin |
| Geology comments: Some of the upper Heath MAY be estuarine/non-marine as noted by the author. These localities contain wood and other plant fragments, are non-calcareous and contain no marine fossils. These localities have been omitted by me [MS]. | |||
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USGS |
Metadata
| Database number: | 5644 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers |
| Modifier: | J. Alroy | Research group: | marine invertebrate |
| Created: | 1999-11-09 15:16:01 | Last modified: | 2006-08-06 21:32:26 |
| Access level: | the public | Released: | 2000-11-20 13:53:27 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 348. | W. H. Easton. 1962. Carboniferous formations and faunas of central Montana. United States Geological Survey Professional Paper 348:1-126 [J. Alroy/M. Sommers/M. Uhen] |