Unit 2, McKenzie Formation, Grasshopper Run Section (Silurian to of the United States)

Where: Morgan County County, West Virginia (39.6° N, 78.2° W: paleocoordinates 29.4° S, 47.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: McKenzie Formation, Llandovery to Llandovery (443.4 - 423.0 Ma)

• group of beds-level stratigraphic resolution

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

• Drab to olive fissile shale, with numerous bands of dark- to blue-gray crystalline limestone and calcareous sandstone. Fossils occur in profusion in upper limestones.

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 41085: authorized by Pete Wagner, entered by Kimberly Koverman on 06.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Homeospira evax
Homeospira evax var. marylandica
Trilobita
 Phacopida - Calymenidae
Calymene niagarensis Hall 1843 trilobite
Calymene niagarensis var. restricta
Ostracoda
 Palaeocopida - Beyrichiidae
Strophomenata
 Orthotetida - Pulsiidae
 Strophomenida - Rafinesquinidae
Leptaena "rhomboidalis" Wahlenberg 1818
Rhynchonellata
 Spiriferida - Spiriferidae
 Rhynchonellida - Camarotoechiidae
 Rhynchonellida - Uncinulidae
 Orthida - Dalmanellidae
"Parmorthis elegantula" = Resserella
"Parmorthis elegantula" = Resserella
Lingulata
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
Bivalvia
 Ostreida - Pterineidae
Cephalopoda
 Orthocerida - Orthoceratidae
"Orthoceras" sp. Breynius 1832