Unit 16, Lower Tonoloway 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: Tonoloway Limstone Formation, Ludlow to Ludlow (427.4 - 419.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, blue limestone

• Mainly laminated blue limestone, some beds platy.

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 41647: authorized by Pete Wagner, entered by Kimberly Koverman on 19.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Palaeocopida - Beyrichiidae
 Palaeocopida -
 Platycopida -
 Leperditicopida - Leperditiidae
 Murchisoniina - Hormotomidae
Hormotoma rowei snail
Hormotoma rowei and H. rowei var. nana
 Murchisoniina - Loxonematidae
Loxonema sp. Phillips 1841 snail
 Athyridida - Meristellidae
 Spiriferida - Spiriferidae
"Spirifer" vanuxemi
"Spirifer" vanuxemi and "S." vanuxemi var. tonolowayensis