Unit 8, Rochester Shale, South Rose Hill Section (Silurian to of the United States)

Where: Allegany County County, Maryland (39.7° N, 78.8° W: paleocoordinates 29.1° S, 47.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rochester Shale Formation (Clinton Group), Llandovery to Llandovery (443.4 - 423.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray shale and lithified, gray, blue limestone

• Thin-bedded gray shale weathering greenish, and interbedded thin beds of blue-gray very fossiliferous limestone.

Primary reference: H. P. Woodward. 1941. Silurian System of West Virginia. West Virginia Geological Survey 14:1-326 [P. Wagner/K. Koverman/K. Koverman]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 41101: authorized by Pete Wagner, entered by Kimberly Koverman on 06.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Encrinuridae
 Phacopida - Dalmanitidae
 Phacopida - Homalonotidae
Ostracoda
 Palaeocopida - Beyrichiidae
 Palaeocopida - Aechminidae
 Platycopida -
Bivalvia
 Ostreida - Pterineidae
"Leiopteria cf. subplana" = Leptodesma (Leiopteria)
"Leiopteria cf. subplana" = Leptodesma (Leiopteria) oyster
[entered as Liopteria subplana]
Gastropoda
 Euomphalina - Platyceratidae
"Diaphorostoma niagarense" = Platyostoma niagarensis
"Diaphorostoma niagarense" = Platyostoma niagarensis Hall 1852 snail
Tentaculita
 Cornulitida - Cornulitidae
Lophophorata
 Tentaculitida - Tentaculitidae
Strophomenata
 Strophomenida - Leptostrophiidae
 Strophomenida - Rafinesquinidae
Leptaena "rhomboidalis" Wahlenberg 1818
Rhynchonellata
 Athyridida - Meristellidae
 Spiriferida - Cyrtiidae
 Spiriferida - Reticulariidae
 Atrypida - Atrypidae
Atrypa "reticularis" Linnaeus 1758
 Rhynchonellida - Rhynchotrematidae
 Rhynchonellida - Uncinulidae
 Orthida - Dalmanellidae
"Parmorthis elegantula" = Resserella
"Parmorthis elegantula" = Resserella
Brachiopoda
 Inarticulata -
Scyphozoa
 Conulariida - Conulariidae