Loc. 14a, Lacey Spring area (Ordovician of the United States)

Where: Rockingham County, Virginia (38.5° N, 78.8° W: paleocoordinates 29.8° S, 58.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Edinburg Formation, Blackriveran (457.3 - 449.6 Ma)

Environment/lithology: black limestone

• "black platy limestone"

Size class: macrofossils

Preservation: replaced with silica

Collected by C. Butts; reposited in the USNM

Collection methods: chemical,

Primary reference: H. B. Whittington. 1959. Silicified Middle Ordovician trilobites: Remopleuridae, Trinucleidae, Raphiophoridae, Endymioniidae. Bulletin of the Museum of Comparative Zoology 121(8):371-496 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105254: authorized by Melanie Hopkins, entered by Melanie Hopkins on 18.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Trinucleida - Trinucleidae
Tretaspis sagenosus
Tretaspis sagenosus Whittington 1959 trilobite
 Asaphida - Remopleurididae
Robergiella sagittalis
Robergiella sagittalis Whittington 1959 trilobite