Shelf community, Keyser Limestone: Early/Lower Devonian, West Virginia, Maryland, Pennsylvania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Ostracoda
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Ostracoda indet.
Latreille 1802
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Trilobita
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Trilobita indet.
Walch 1771
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Gastropoda
- Archaeogastropoda
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? Archaeogastropoda indet.
Thiele 1925
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gastropods - originally entered as "? Archaeogastropoda indet." | ||||||||||
Strophomenata
- Strophomenida
- Strophonellidae
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Strophonella sp.
Hall 1879
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena sp.
Dalman 1828
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia sp.
Hall and Clarke 1892
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Strophomenata
- Strophomenida
- Strophochonetidae
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? Eccentricosta sp.
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originally entered as "? Eccentricosta sp." | ||||||||||
Strophomenata
- Orthotetida
- Schuchertellidae
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Schuchertella sp.
Girty 1904
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa sp.
Dalman 1828
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella sp.
Kozlowski 1946
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Delthyris sp.
Dalman 1828
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Rhynchonellata
- Spiriferida
- Cyrtinopsidae
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Kozlowskiellina sp.
Boucot 1958
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Rhynchonellata
- Terebratulida
- Centronellidae
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Nanothyris sp.
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Cupularostrum sp.
Sartenaer 1961
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Rhynchotreta sp.
Hall 1879
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Rhynchonellata
- Rhynchonellida
- Machaerariidae
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Machaeraria sp.
Cooper 1955
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originally entered as "Macheraria sp." | ||||||||||
Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina sp.
Davidson 1858
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Rhynchonellata
- Orthida
- Hesperorthidae
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Dolerorthis sp.
Schuchert and Cooper 1931
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis sp.
Kozlowski 1929
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina sp.
Havlicek 1953
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Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula sp.
Hall 1867
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Rhynchonellata
- Athyridida
- Athyrididae
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Protathyris sp.
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Rhynchonellata
- Athyridida
- Nucleospiridae
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Nucleospira sp.
Hall 1859
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Rhynchonellata
- Athyridida
- Meristellidae
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Meristella sp.
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Rhynchonellata
- Athyridida
- Meristidae
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Merista sp.
Suess 1851
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Rhynchonellata
- Athyridida
- Rhynchospirinidae
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Rhynchospirina sp.
Schuchert and LeVene 1929
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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encrusting bryozoans | ||||||||||
Stenolaemata
- Fenestrata
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Fenestrata indet.
(Elias and Condra 1957)
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synonym of Fenestelloidea | ||||||||||
fenestrate bryozoans | ||||||||||
Stenolaemata
- Trepostomata
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? Trepostomata indet.
Ulrich 1882
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ramose bryozoans - originally entered as "? Trepostomata indet." | ||||||||||
Tentaculitida
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Tentaculitida indet.
Ljaschenko 1955
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tentaculititids | ||||||||||
Cystoidea
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Cystoidea indet.
von Buch 1846
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14 species, >1 genera | ||||||||||
Crinoidea
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Crinoidea indet.
Miller 1821
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crinoids | ||||||||||
Stromatoporoidea
- Stromatoporoidea
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Stromatoporoidea indet.
Nicholson and Murie 1878
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stromatoporoids | ||||||||||
see common names |
Geography
Country: | United States | State/province: | West Virginia, Maryland, Pennsylvania |
Coordinates: | 39.6° North, 77.7° West (view map) | ||
Paleocoordinates: | 42.1° South, 30.9° West | ||
Basis of coordinate: | based on political unit | ||
Geographic resolution: | basin |
Time
Period: | Devonian | Epoch: | Early/Lower Devonian |
10 m.y. bin: | Devonian 1-2 | ||
*Period: | Early/Lower Devonian | ||
Key time interval: | Early/Lower Devonian | ||
Age range of interval: | 419.20000 - 393.30000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Keyser Limestone | ||||
Stratigraphy comments: "earliest Devonian? (overlies Tonoloway Ls)" |
Lithology and environment
Primary lithology: | burrows lime mudstone |
Secondary lithology: | "shale" |
Environment: | marine indet. |
Geology comments: "interbedded sh and calcisiltites and biomicrites, thin bedded, some bioturbation. BA4" |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Taxonomic list comments:"Makurath, 1977" |
Metadata
Database number: | 652 | ||
Authorizer: | J. Sepkoski | Enterer: | M. Sommers |
Modifier: | J. Ju | Research group: | marine invertebrate |
Created: | 1999-04-06 17:17:31 | Last modified: | 2017-01-04 16:31:19 |
Access level: | the public | Released: | 1999-04-06 17:17:31 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
60973. | J. H. Makurath. 1977. Marine faunal assemblages in the Siurian-Devonian Keyser Limestone of the central Appalachians. Lethaia 10:235-256 [M. Uhen/J. Ju/M. Uhen] |