Lower Copan West, Oklahoma Route 10, Copan Lake (Carboniferous of the United States)

Also known as LCWO

Where: Washington County, Oklahoma (36.9° N, 96.0° W: paleocoordinates 4.5° S, 29.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Barnsdall Formation (Lansing Group), Missourian (305.9 - 303.4 Ma)

• "Stanton-Formation-equivalent Barnsdall Formation...directly above the Torpedo Sandstone"; "the last major transgressive event of the Missourian Stage"

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; calcareous shale and packstone

• "mid-shelf"
• "calcareous shales and argillaceous packstones"

Size class: macrofossils

Collection methods: bulk, chemical, sieve,

• "Bulk samples [from this collection and others] weighed between 5 and 10 kg and were either oven dried, soaked in light kerosene, and washed through a 500 micrometer sieve or simply washed with water through the sieve"

Primary reference: P. F. Holterhoff. 1997. Filtration models, guilds, and biofacies: crinoid paleoecology of the Stanton Formation (Upper Pennsylvanian), Midcontinent, North America. Palaeogeography, Palaeoclimatology, Palaeoecology 130(1-4):177-208 [J. Alroy/C. Simpson/C. Simpson]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 72373: authorized by John Alroy, entered by John Alroy on 01.06.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• counts pertain to individuals, but "basals, radials, and primibrachials" that are diagnostic but not unique within an individual "were counted in multiples of five... e.g., the first five plates equals one individual"
unclassified
  -
Crinoidea
 Dendrocrinida - Apographiocrinidae
Apographiocrinus sp. Moore and Plummer 1940 Sea lily
 Dendrocrinida - Blothrocrinidae
Elibatocrinus sp. Moore 1940 Sea lily
 Dendrocrinida - Galateacrinidae
Galateacrinus sp. Moore 1940 Sea lily
 Dendrocrinida - Exocrinidae
Exocrinus sp. Strimple 1949 Sea lily
 Dendrocrinida - Cromyocrinidae
Cromyocrinidae indet. Bather 1890 Sea lily
Ulocrinus sp. Miller and Gurley 1890 Sea lily
 Dendrocrinida - Pirasocrinidae
Pirasocrinidae indet. Moore and Laudon 1943 Sea lily
 Dendrocrinida - Laudonocrinidae
Laudonocrinidae indet. Moore and Strimple 1973 Sea lily
 Dendrocrinida - Stellarocrinidae
Stellarocrinus sp. Strimple 1940 Sea lily
 Dendrocrinida - Pelecocrinidae
Exoriocrinus sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Catacrinidae
Graffhamicrinus sp. Strimple 1961 Sea lily
Delocrinus sp. Miller and Gurley 1890 Sea lily
 Dendrocrinida - Erisocrinidae
Erisocrinus sp. Meek and Worthen 1865 Sea lily
 Dendrocrinida - Scytalocrinidae
Scytalocrinidae indet. Moore and Laudon 1943 Sea lily
 Poteriocrinina - Decadocrinidae
Glaukosocrinus sp. Strimple 1951 Sea lily
 Taxocrinida - Synerocrinidae
Euonychocrinus sp. Strimple 1940 Sea lily
 Sagenocrinida - Mespilocrinidae
Cibolocrinus sp. Weller 1909 Sea lily
 Sagenocrinida - Euryocrinidae
Paramphicrinus sp. Strimple and Moore 1971 Sea lily
 Ampelocrinida - Ampelocrinidae
Ampelocrinidae indet. Kirk 1942 Sea lily
 Cladida - Cymbiocrinidae
Cymbiocrinidae indet. Strimple and Watkins 1969 Sea lily
 Disparida - Allagecrinidae
Kallimorphocrinus sp. Weller 1930 Sea lily