ammonites
Locality 24, Glen Dean Limestone, Breckinridge Co. KY (Carboniferous of the United States)

Where: Breckinridge County, Kentucky (37.7° N, 86.5° W: paleocoordinates 11.8° S, 27.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dibunophyllum zone, Glen Dean Limestone Formation, Pendleian (326.4 - 318.1 Ma)

• collection taken from the Lower Glen Dean Limestone [JA: entered as Chesterian; the Glen Dean is late Hombergian = Pendleian]

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; pyritic, ooidal, shelly/skeletal, cherty/siliceous grainstone

• hard, tan or gray, crystalline limestone that occurs in fairly massive beds; some beds oolitic; all beds fragmental in appearance and quite fossiliferous; common minerals include: dolomite, chert, pyrite, limonite and hematite;

Preservation: replaced with silica

Collection methods: surface (in situ), mechanical,

Primary reference: A. S. Horowitz. 1956. Fauna of Glen Dean Limestone (Chester) in Indiana and Northern Kentucky. unpublished Ph.D. thesis, Indiana University 1-449 [A. Miller/K. Layou] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6934: authorized by Arnold Miller, entered by Karen Layou on 12.04.2000