Shelf community, Keyser Limestone (Devonian of the United States)

Where: West Virginia, Maryland, Pennsylvania (39.6° N, 77.7° W: paleocoordinates 42.1° S, 30.9° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Keyser Limestone Formation, Early/Lower Devonian (419.2 - 393.3 Ma)

• "earliest Devonian? (overlies Tonoloway Ls)"

Environment/lithology: marine; burrowed lime mudstone and shale

• "interbedded sh and calcisiltites and biomicrites, thin bedded, some bioturbation. BA4"

Size class: macrofossils

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 652: authorized by Jack Sepkoski, entered by Mike Sommers on 06.04.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Makurath, 1977"
Show authors, comments, and common names
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet.
Stromatoporoidea indet. stromatoporoid sponge
stromatoporoids
Gastropoda
 Streptoneura -
? Archaeogastropoda indet.
? Archaeogastropoda indet. Thiele 1925 snail
gastropods - originally entered as "? Archaeogastropoda indet."
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
encrusting bryozoans
Stenolaemata
 Fenestrata -
Fenestrata indet.
Fenestrata indet. Elias and Condra 1957
fenestrate bryozoans
 Trepostomata -
? Trepostomata indet.
? Trepostomata indet. Ulrich 1882
ramose bryozoans - originally entered as "? Trepostomata indet."
Rhynchonellata
 Orthida - Hesperorthidae
Dolerorthis sp.
Dolerorthis sp. Schuchert and Cooper 1931
 Orthida - Rhipidomellidae
Dalejina sp.
Dalejina sp. Havlicek 1953
 Orthida - Dalmanellidae
Isorthis sp.
Isorthis sp. Kozlowski 1929
 Spiriferinida - Cyrtinidae
Cyrtina sp.
Cyrtina sp. Davidson 1858
 Atrypida - Atrypidae
Atrypa sp.
Atrypa sp. Dalman 1828
 Spiriferida - Cyrtinopsidae
Kozlowskiellina sp.
Kozlowskiellina sp. Boucot 1958
 Spiriferida - Delthyrididae
Howellella sp., Delthyris sp.
Howellella sp. Kozlowski 1946
Delthyris sp. Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp., Cupularostrum sp.
Rhynchotreta sp. Hall 1879
Cupularostrum sp. Sartenaer 1961
 Rhynchonellida - Machaerariidae
Machaeraria sp.
Machaeraria sp. Cooper 1955
originally entered as "Macheraria sp."
 Pentamerida - Gypidulidae
Gypidula sp.
Gypidula sp. Hall 1867
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
 Athyridida - Athyrididae
Protathyris sp.
 Athyridida - Meristellidae
Meristella sp.
 Athyridida - Meristidae
Merista sp.
Merista sp. Suess 1851
 Athyridida - Rhynchospirinidae
Rhynchospirina sp.
Rhynchospirina sp. Schuchert and LeVene 1929
 Terebratulida - Centronellidae
Nanothyris sp.
Strophomenata
 Orthotetida - Schuchertellidae
Schuchertella sp.
Schuchertella sp. Girty 1904
 Strophomenida - Strophochonetidae
? Eccentricosta sp.
? Eccentricosta sp.
originally entered as "? Eccentricosta sp."
 Strophomenida - Strophonellidae
Strophonella sp.
Strophonella sp. Hall 1879
 Strophomenida - Rafinesquinidae
Leptaena sp.
Leptaena sp. Dalman 1828
 Strophomenida - Leptostrophiidae
Leptostrophia sp.
Leptostrophia sp. Hall and Clarke 1892
 Lophophorata -
Tentaculitida indet.
Tentaculitida indet. Ljaschenko 1955
tentaculititids
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
Cystoidea
  -
Cystoidea indet.
Cystoidea indet. von Buch 1846
14 species, >1 genera
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoids