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
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
Scyphozoa | |
Conularia niagarensis jellyfish | |
Gastropoda | |
"Diaphorostoma niagarense" = Platyostoma niagarensis
"Diaphorostoma niagarense" = Platyostoma niagarensis Hall 1852 snail | |
Bivalvia | |
"Leiopteria cf. subplana" = Leptodesma (Leiopteria)
| |
Tentaculita | |
Lophophorata | |
Craniata | |
"Pholidops squamiformis" = Craniops
"Pholidops squamiformis" = Craniops | |
Strophomenata | |
Leptaena "rhomboidalis" Wahlenberg 1818 | |
Rhynchonellata | |
Atrypa "reticularis" Linnaeus 1758 | |
"Parmorthis elegantula" = Resserella
"Parmorthis elegantula" = Resserella | |
Ostracoda | |
Paraechmina postica ostracod | |
Drepanellina clarki ostracod | |
Dizygopleura symmetrica ostracod | |
Trilobita | |
Dalmanites limulurus trilobite | |
Encrinurus ornatus trilobite | |
Trimerus delphinocephalus trilobite |