Locality 12, Glen Dean Limestone, Crawford Co., IN (Carboniferous of the United States)

Where: Crawford County, Indiana (38.3° N, 86.5° W: paleocoordinates 11.3° S, 26.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dibunophyllum zone, Glen Dean Limestone Formation, Pendleian (330.9 - 327.0 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,

• listed with locality information is identification as collection 104 and 105

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 6929: authorized by Arnold Miller, entered by Karen Layou on 12.04.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

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Crinoidea
 Monobathrida - Dichocrinidae
Pterotocrinus bifurcatus, Pterotocrinus spatulatus, Pterotocrinus acutus, Pterotocrinus depressus
Stenolaemata
 Cryptostomata - Fenestellidae
Archimedes macfarlani, Archimedes terebriformis, Archimedes invaginatus
Rhynchonellata
 Athyridida - Retziidae
Eumetria costata
Eumetria costata
Eumetria marcyi var. costata
 Athyridida - Athyrididae
Composita subquadrata
Strophomenata
 Productida - Linoproductidae
Linoproductus pileiformis