Unit 15, Wills Creek Limestone, McKenzie-Pinto Section (Silurian to of the United States)

Where: Allegany County County, Maryland (39.6° N, 78.8° W: paleocoordinates 32.7° S, 43.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, calcareous shale and lithified mudstone

• Interbedded dark calcareous shale and mudrock with thin platy imure 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 41171: authorized by Pete Wagner, entered by Kimberly Koverman on 07.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Podocopida - Bythocyprididae
 Palaeocopida - Beyrichiidae
 Palaeocopida - Bolliidae
Bollia nitida ostracod
 Platycopida - Kloedenellidae
Eukloedenella umbilicata ostracod
Eukloedenella umbilicata var. curta
 Leperditicopida - Leperditiidae
Leperditia elongata ostracod
Leperditia elongata var. willsensis
 Ostreida - Pterineidae
Actinopteria sp. Hall 1884 oyster