Also known as 1988-1

Where: Chesterfield County, Virginia (37.5° N, 77.7° W: paleocoordinates 2.4° N, 16.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Tomahawk Creek Member (Vinita Formation), Carnian (237.0 - 228.0 Ma)

• "Based on conchostracans, Kozur & Weems (2007) recently dated much of the succession in the Richmond Basin and correlative units in the adjacent Taylorsville basin as early Carnian (Cordevolian), but earlier Huber et al. (1993) had argued for a late Carnian age of these strata. At the present time this controversy cannot be resolved" (Sues & Hopson 2010)

•"Turkey Branch Formation" was previously used for this locality; Richmond Basin, Newark Supergroup

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; silty, calcareous mudstone

Size classes: macrofossils, mesofossils, microfossils

Collected by Olsen, Sues in 1983, 1988-1992; reposited in the USNM

Collection methods: bulk, surface (float), surface (in situ), chemical, mechanical, sieve,

Primary reference: P. E. Olsen. 1989. Stop 3.2: Tomahawk tetrapod quarry. In P. E. Olsen, R. W. Schlische, & P. J. W. Gore (eds.), Tectonic, Depositional, and Paleoecological History of Early Mesozoic Rift Basins, Eastern North America. Gulf, North Carolina, USA to Parrsboro, Nova Scotia, Canada. July 20–30, 1989. International Geological Congress Field Trip T-351 54-55 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 39159: authorized by Matthew Carrano, entered by Matthew Carrano on 21.05.2004, edited by Patricia Holroyd and Bryan Gee

Creative Commons license: CC BY (attribution)