Crawfordsville, Lower Quarry, Bed B (Carboniferous to of the United States)

Where: Montgomery County, Indiana (40.0° N, 86.9° W: paleocoordinates 17.2° S, 32.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Edwardsville Member (Muldraugh Formation), Chadian to Chadian (346.7 - 340.0 Ma)

• JA: the late Osagean is Chadian and Arundian according to Heckel and Clayton 2006

• bed-level stratigraphic resolution

Environment/lithology: delta front; lithified, shelly/skeletal limestone and siltstone

• thin lenses of crinoidal limestone and siltstone... fossiliferous silstones.

Collection methods: bulk, chemical, mechanical, sieve,

Primary reference: N. G. Lane, J. L. Matthews, E. G. Driscoll and E. L. Yochelson. 1973. Paleontology and paleoecology of the Crawfordsville fossil site (Upper Osagian: Indiana). University of California Publications in Geological Sciences 99:1-141 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 8068: authorized by John Alroy, entered by Mike Sommers on 15.06.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• does not include bryozoans
unclassified
  -
Crinoidea
 Taxocrinida - Taxocrinidae
Taxocrinus sp. Phillips 1843 Sea lily
 Cyathocrinida - Cyathocrinitidae
Cyathocrinites sp. Miller 1821 Sea lily
 Poteriocrinina - Poteriocrinitidae
Springericrinus sp. Jaekel 1918 Sea lily
 Cladida - Botryocrinidae
 Monobathrida - Platycrinitidae
Platycrinites sp. Miller 1821 Sea lily
 Monobathrida - Actinocrinitidae
Actinocrinites sp. Miller 1821 Sea lily
 Monobathrida - Dichocrinidae
Dichocrinus sp. Munster 1839 Sea lily
 Monobathrida - Batocrinidae
Macrocrinus sp. Jaekel 1895 Sea lily
Eretmocrinus sp. Lyon and Casseday 1859 Sea lily
Gastropoda
 Euomphalina - Platyceratidae
Platyceras (Platyceras) sp. Conrad 1840 snail
sgn. (Platyceras)
Bivalvia
 Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851 scallop
Rhodophyceae
  - Aoujgaliaceae
Stacheia sp. Brady 1876
Foraminifera
 Ammodiscoidea - Ammodiscidae
 Astrorhizacea - Psammosphaeridae