Loc. 7, bridge east of Edinburg (Ordovician of the United States)

Where: Shenandoah County, Virginia (38.8° N, 78.5° W)

• Paleocoordinates: 19.8° S, 109.9° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Climacograptus peltifer graptolite zone, Edinburg Formation, Blackriveran (457.3 - 449.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Preservation: replaced with silica

Collected by E. O. Ulrich, C. Butts in 1931; reposited in the USNM

Primary reference: H. B. Whittington. 1956. Silicified Middle Ordovician trilobites: the Odontopleuridae. Bulletin of the Museum of Comparative Zoology 114(6):155-288 [M. Hopkins/M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 102231: authorized by Melanie Hopkins, entered by Melanie Hopkins on 12.01.2011, edited by Pete Wagner

Creative Commons license: CC0 (CC0)

Taxonomic list

Artiopoda
 Agnostida - Metagnostidae
Trinodus elspethi2 Raymond 1925
Trilobita
 Proetida - Dimeropygidae
Dimeropyge virginiensis2 Whittington and Evitt 1953 trilobite
 Asaphida - Remopleurididae
Remopleurides caelatus2 Whittington 1959 trilobite
 Trinucleida - Trinucleidae
Tretaspis sagenosus2 Whittington 1959 trilobite
 Trinucleida - Raphiophoridae
Raymondella elegans2 Cooper 1953 trilobite
 Odontopleurida - Odontopleuridae
Diacanthaspis ulrichi n. sp. Whittington 1956 trilobite
 Phacopida - Cheiruridae
Sphaerocoryphe longispina1 Tripp et al. 1997 trilobite
Sphaerocoryphe gemina1 Tripp et al. 1997 trilobite
Sphaerexochus pulcher2 Whittington and Evitt 1953 trilobite