Blacktail Creek, MT-11: Griesbachian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Spiriferinida
- Spiriferinidae
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"Spiriferina" sp.
d'Orbigny 1847
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4 specimens | ||||||
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Lingulata
- Lingulida
- Lingulidae
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Lingula sp.
Bruguiére 1797
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80 specimens | ||||||
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= Lingularia sp.
Biernat and Emig 1993
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Clapham 2015 | ||||||
| 14 specimens | |||||||
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Bivalvia
- Pectinida
- Claraiidae
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? Claraia sp.
Bittner 1901
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7 specimens | ||||||
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Bivalvia
- Pectinida
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? Aviculopectinoidea indet.
Meek and Hayden 1864
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14 specimens | ||||||
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Bivalvia
- Pectinida
- Aviculopectinidae
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Eumorphotis sp.
Bittner 1901
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100 specimens | ||||||
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Bivalvia
- Myalinida
- Myalinidae
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| 1 specimen | |||||||
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Bivalvia
- Cardiida
- Anthracosiidae
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? Unionites sp.
Wissman 1841
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52 specimens | ||||||
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Gastropoda
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| 21 specimens | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Montana |
| Coordinates: | 44.8° North, 112.3° West (view map) | ||
| Paleocoordinates: | 29.7° North, 34.5° West (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Early Triassic |
| Stage: | Induan | 10 m.y. bin: | Triassic 1 |
| Key time interval: | Griesbachian | ||
| Age range of interval: | 251.902 - 250.5 m.y. ago |
Stratigraphy
| Formation: | Dinwoody |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 44492 | ||
| Authorizer: | D. Bottjer, M. Clapham | Enterer: | N. Bonuso, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-09-13 12:21:32 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | authorizer only | Released: | 2009-09-13 12:21:32 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 11667. | M. Fraiser. 2005. When Bivalves Took Over the World: Global Paleoecology of Bivalves During the Aftermath of the End-Permian Mass Extinction. [D. Bottjer/N. Bonuso/N. Bonuso] |
Secondary references:
| 27487 | M. E. Clapham. 2015. Personal Opinions. [M. Clapham/M. Clapham/M. Clapham] |