PBDB Collection

Loc. 4. Field northeast of VA-639, ¼ from junction with US-11, 0.7 mile southwest Strasburg (Ordovician of the United States)

Where: Shenandoah County, Virginia (39.0° N, 78.4° W: paleocoordinates 29.7° S, 58.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: limestone

• Alterations of dark granular limestone and dark fine-grained limestone with spponge spicules

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Primary reference: H. B. Whittington and W.R., I.I. Evitt. 1953. Silicified Middle Ordovician trilobites. Geological Society of America Memoir 59:1-139 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 73343: authorized by Pete Wagner, entered by Pete Wagner on 12.06.2007, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Trilobita
Harpetida - Harpetidae	Dolichoharpes reticulata⁴ Dolichoharpes reticulata⁴ Whittington 1949 trilobite
Proetida - Dimeropygidae	Chomatopyge falcata Chomatopyge falcata Whittington and Evitt 1953 trilobite
Trinucleida - Trinucleidae	Tretaspis sagenosus⁴ Tretaspis sagenosus⁴ Whittington 1959 trilobite
Trinucleida - Raphiophoridae	Ampyx virginiensis⁴ Ampyx virginiensis⁴ Cooper 1953 trilobite
Asaphida - Remopleurididae	Remopleurides eximius n. sp.⁴, Remopleurides caelatus⁴, Remopleurides caphyroides⁴ Remopleurides eximius n. sp.⁴ Whittington 1959 trilobite Remopleurides caelatus⁴ Whittington 1959 trilobite Remopleurides caphyroides⁴ Whittington 1959 trilobite
Asaphida - Remopleuridae	Remopleuridae indet.⁴ Remopleuridae indet.⁴ Hawle and Corda 1847 trilobite
Phacopida - Encrinuridae	"Encrinuroides tholus" = Physemataspis tholus¹, Libertella corona¹, Bevanopsis ulrichi¹ "Encrinuroides tholus" = Physemataspis tholus¹ Evitt and Tripp 1977 trilobite Libertella corona¹ Hu 1971 trilobite Bevanopsis ulrichi¹ Cooper 1953 trilobite
Phacopida - Cheiruridae	Acanthoparypha perforata⁴, Sphaerocoryphe longispina², Sphaerocoryphe gemina² Acanthoparypha perforata⁴ Whittington and Evitt 1953 trilobite Sphaerocoryphe longispina² Tripp et al. 1997 trilobite Sphaerocoryphe gemina² Tripp et al. 1997 trilobite
Odontopleurida - Odontopleuridae	Apianurus glaber³, Apianurus barbatus³, Ceratocephala (Ceratocephalina) tridens³, Ceratocephala laciniata³, Diacanthaspis lepidus³, Diacanthaspis secretus³, Diacanthaspis ulrichi³ Apianurus glaber³ Whittington 1956 trilobite Apianurus barbatus³ Whittington 1956 trilobite Ceratocephala (Ceratocephalina) tridens³ Whittington 1956 trilobite Ceratocephala laciniata³ Whittington and Evitt 1953 trilobite Diacanthaspis lepidus³ Whittington 1956 trilobite Diacanthaspis secretus³ Whittington 1956 trilobite Diacanthaspis ulrichi³ Whittington 1956 trilobite

¹Evitt and Tripp 1977; ²Tripp et al. 1997; ³Whittington 1956; ⁴Whittington 1959