ammonites
Locality 16 of 17, Beech Creek Limestone, Orange Co., IN (Carboniferous of the United States)

Where: Orange County, Indiana (38.6° N, 86.7° W: paleocoordinates 13.0° S, 29.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Beech Creek Formation, Chesterian (339.4 - 318.1 Ma)

• some workers consider the Beech Creek to be a member of the Paint Creek Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, gray, argillaceous limestone

• the lower part of the beech creek is characteristically gun metal blue, dense, hard limestone that weathers to smooth, lighter-gray surfaces; contains many specimens of undetermined species of planispiral or low-spired gastropods which are mostly recrystallized. the middle and upper beds of the formatin consist of light-gray, crystalline limestone that weathers to a characteristic hackly appearance; in some localities, the upper few feet are somewhat argillaceous, and the surface weathers yellowish-brown.

Collection methods: mechanical,

Primary reference: A. C. Brookley, Jr. 1955. The Paleontology of the Beech Creek (Chester) Limestone of Indiana. unpublished M.A. thesis, Indiana University 1-105 [A. Miller/K. Layou] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6893: authorized by Arnold Miller, entered by Karen Layou on 07.04.2000