Where: Smyth County, Virginia (36.9° N, 81.8° W)

• Paleocoordinates: 34.4° S, 48.8° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Little Valley Formation, Meramecian (343.0 - 335.5 Ma)

• "uppermost Little Valley Formation"

•samples are from 17 beds throughout about 35 m of section

• member-level stratigraphic resolution

Environment/lithology: lagoonal; gray, calcareous siltstone

Size class: macrofossils

Collected in 1989 to 1991

• 16 ca. 4 kg samples were taken the top four beds, and "at least one" such sample from each of the 13 underlying fossiliferous beds

•total number of specimens is not stated, but a rarefaction graph indicates it is between 500 and 600, and frequencies in a table have a minimum of 39.1 in 22471.5 = 1 in 574, which exactly predicts other values, so I am assuming this is the total

•bryozoan colonies are not counted, but abundance is assessed elsewhere using "a point counting method"

Primary reference: T. A. Radenbaugh and F. K. McKinney. 1998. Comparison of the structure of a Mississippian and a Holocene pen shell assemblage. Palaios 13(1):52-69 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 73202: authorized by John Alroy, entered by John Alroy on 06.06.2007

Creative Commons license: CC0 (CC0)