Unit 1, Upper Tonoloway Limestone, Grasshopper Run Section II (Silurian to of the United States)

Where: Morgan County County, West Virginia (39.6° N, 78.2° W: paleocoordinates 32.8° S, 42.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tonoloway Limestone Formation, Ludlow to Ludlow (427.4 - 419.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray limestone

• Hard dark-gray crystalline limestone, with flattened pebbles at base.

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 41172: authorized by Pete Wagner, entered by Kimberly Koverman on 07.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Orthotetida - Pulsiidae
 Strophomenida - Leptostrophiidae
Leptostrophia bipartita
Leptostrophia bipartita var. curviradiata
Rhynchonellata
 Spiriferida - Spiriferidae
"Spirifer" vanuxemi
"Spirifer" vanuxemi var. tonolowayensis
 Rhynchonellida - Camarotoechiidae