Brachiopods of lower Cerro Gordo Mbr., Lime Creek Fm., North-Central Iowa: Frasnian, Iowa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Productida
- Monticuliferidae
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Devonoproductus walcotti
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Strophomenata
- Strophomenida
- Strophodontidae
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Strophodonta unbonata
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| corrected as Strophomena (Strophodonta) | ||||||||||
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Strophonelloides reversa
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Strophomenata
- Strophomenida
- Douvillinidae
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Douvillina arcuata
(Hall 1858)
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Douvillinaria delicata
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Nervostrophia canace
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Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula cornuta
Fenton and Fenton 1924
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Rhynchonellata
- Spiriferida
- Mucrospiriferidae
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Tylothyris aff. sulcocostata
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| T. n. sp. | ||||||||||
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Rhynchonellata
- Spiriferida
- Ambocoeliidae
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Ambocoelia sp.
Hall 1860
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| A. n. sp. | ||||||||||
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Rhynchonellata
- Spiriferida
- Cyrtospiriferidae
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Cyrtospirifer whitneyi
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Rhynchonellata
- Atrypida
- Atrypidae
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Spinatrypa rockfordensis
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Pseudoatrypa devoniana
(Webster 1921)
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Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina inulta
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Rhynchonellata
- Rhynchonellida
- Leiorhynchidae
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Calvinaria bransoni
Stainbrook 1948
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Cupularostrum saxatilis
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Rhynchonellata
- Terebratulida
- Cranaenidae
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Cranaena navicella
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Iowa |
| Coordinates: | 43.0° North, 93.0° West (view map) | ||
| Paleocoordinates: | 29.2° South, 37.6° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Devonian | Epoch: | Late/Upper Devonian |
| Stage: | Frasnian | 10 m.y. bin: | Devonian 4 |
| Key time interval: | Frasnian | ||
| Age range of interval: | 382.70000 - 372.20000 m.y. ago |
Stratigraphy
| Formation: | Lime Creek | Member: | Cerro Gordo | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: Member covers both Cyrtospirifer whitneyi and Elita inconsueta zones. This collection covers the former, and consists of a number of samples. | |||||
Lithology and environment
| Primary lithology: | "shale" |
| Secondary lithology: | calcareous "shale" |
| Lithology description: Stratigraphic chart indicates shales and shales with limestone nodules. | |
| Environment: | marine indet. |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 35498 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2003-12-17 13:46:02 | Last modified: | 2006-09-13 14:01:03 |
| Access level: | the public | Released: | 2003-12-17 13:46:02 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 9581. | J. Day. 1988. The brachiopod succession of the Late Givetian-Frasnian of Iowa. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 303-325 [M. Foote/M. Foote/M. Foote] |