Where: Pontotoc County, Oklahoma (34.5° N, 96.7° W: paleocoordinates 22.4° S, 73.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bromide Formation, Blackriveran (457.3 - 449.6 Ma)

• collected 140 feet below top of formation

• bed-level stratigraphic resolution

Environment/lithology:

Size class: macrofossils

Preservation: original calcite

Reposited in the USNM

Primary reference: R. S. Bassler. 1950. New genera of American Middle Ordovician "Cystoidea". Journal of the Washington Academy of Sciences 40(9):273-277 [S. Holland/S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37986: authorized by Steven Holland, entered by Steven Holland on 30.03.2004

Creative Commons license: CC BY (attribution)