Where: Washington County, Virginia (36.8° N, 82.3° W: paleocoordinates 29.6° S, 85.0° W)
• coordinate stated in text
• local area-level geographic resolution
When: Nolichucky Formation, Steptoean (497.0 - 493.5 Ma)
• formation-level stratigraphic resolution
Environment/lithology: shallow subtidal; ooidal, gray, argillaceous, conglomeratic shale and limestone
Primary reference: C. S., J.r. Bartlett and H. W. Webb. 1971. Geology of the Bristol and Wallace quadrangles, Virginia. Virginia Division of Mineral Resources Report of Investigations 25:1-93 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 6960: authorized by John Alroy, entered by Mike Sommers on 14.04.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Trilobita | |
"Coosia calanus" = Asaphiscus calanus
"Coosia calanus" = Asaphiscus calanus Walcott 1916 trilobite | |
Norwoodella saffordi trilobite | |
Crepicephalus rectus trilobite
? Coosia alethes Walcott 1916 trilobite | |
Tricrepicephalus cedarensis trilobite
Tricrepicephalus simplex trilobite | |
Blountiella ? buttsi trilobite | |
Aphelaspis ? quadrata trilobite | |
Lingulata | |
Dicellomus appalachia Walcott 1905 | |
Cystoidea | |
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