Where: Washington County, Virginia (36.6° N, 82.2° W: paleocoordinates 29.6° S, 85.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Nolichucky Formation, Steptoean (497.0 - 493.5 Ma)
• AGE: Steptoan; refined by A. Hendy (6/2009) on the basis of biostratigraphic data.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, gray, green, argillaceous, silty 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 7106: authorized by John Alroy, entered by Mike Sommers on 25.04.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Cystoidea | |
Cystoidea indet. von Buch 1846 | |
Lingulata | |
Dicellomus appalachia Walcott 1905 | |
Trilobita | |
Norwoodella cf. saffordi trilobite |