Unit 10, Keefer Sandstone, North 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: Keefer Sandstone Formation (Clinton Group), Llandovery to Llandovery (443.4 - 423.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous sandstone

• Massive sandstone, upper 2 feet very calcareous; lower foot iron stained.

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 41094: authorized by Pete Wagner, entered by Kimberly Koverman on 06.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Calymenidae
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Strophomenata
 Orthotetida - Pulsiidae
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae