Upper Pilgrim Fm. #4: Dresbachian, Montana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Tergomya
- Tryblidiida
- Tryblidiidae
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Propilina sp.
Kobayashi 1933
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originally entered as "Proplina sp." | ||||||||||
Tergomya
- Kiringellida
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Hypseloconus sp.
Berkey 1898
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Rhynchonellata
- Orthida
- Eoorthidae
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Eoorthis sp.
Walcott 1908
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Strophomenata
- Billingsellida
- Billingsellidae
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Billingsella sp.
Hall and Clarke 1892
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Lingulata
- Lingulida
- Dysoristidae
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Dysoristus sp.
Bell in Lochman and Duncan 1941
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Trilobita
- Corynexochida
- Cheilocephalidae
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Cheilocephalus sp.
Berkey 1898
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Trilobita
- Asaphida
- Asaphidae
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Maryvillia sp.
Walcott 1916
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Trilobita
- Ptychopariida
- Lonchocephalidae
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Glaphyraspis sp.
Resser 1937
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Trilobita
- Ptychopariida
- Kingstoniidae
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Blountia sp.
Walcott 1916
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Trilobita
- Olenida
- Aphelaspidae
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Aphelaspis sp.
Resser 1935
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Labiostria sp.
Palmer 1954
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see common names |
Geography
Country: | United States | State/province: | Montana |
Coordinates: | 46.0° North, 112.5° West (view map) | ||
Paleocoordinates: | 5.5° South, 81.3° West | ||
Basis of coordinate: | based on political unit |
Time
Period: | Cambrian | Epoch: | Furongian |
10 m.y. bin: | Cambrian 5 | *Epoch: | Upper | *Local age/stage: | Dresbachian |
Key time interval: | Dresbachian | Zone: | Aphelaspis |
Age range of interval: | 497 - 485.4 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Pilgrim | ||||
Stratigraphy comments: "Dresbachian, Aphelaspis zone" |
Lithology and environment
Primary lithology: | grainstone | ||
Environment: | marine indet. | Tectonic setting: | cratonic basin |
Geology comments: "calcarenites, shallow carbonate, BA3, cratonic" |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Taxonomic list comments:"C. Lochman and C.-H. Hu, 1962. An Aphelaspis zone faunule from Loga[illeg.] Montana. J.Paleo 36:431-441" |
Metadata
Also known as: | SW Montana | ||
Database number: | 236 | ||
Authorizer: | J. Sepkoski | Enterer: | M. Sommers |
Modifier: | J. Ju | Research group: | marine invertebrate |
Created: | 1998-11-20 10:07:18 | Last modified: | 2016-12-29 12:38:47 |
Access level: | the public | Released: | 1998-11-20 10:07:18 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
594. | C. Lochman and C. Hu. 1962. An Aphelaspis Zone faunule from Logan, Montana. Journal of Paleontology 36(3):431-441 [M. Patzkowsky/P. Borkow/J. Ju] |