Rollins Farm Pond (Carboniferous of the United States)

Also known as RFPK

Where: Montgomery County, Kansas (37.2° N, 95.8° W: paleocoordinates 4.3° S, 29.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Eudora Shale Member (Stanton Formation), Missourian (306.0 - 303.7 Ma)

• "Eudora Shale Member"; "the last major transgressive event of the Missourian Stage"

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; gray shale

• "dysaerobic offshore"
• "gray shale"

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 72380: 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"
Crinoidea
 Dendrocrinida - Agassizocrinidae
Paragassizocrinus sp. Moore and Plummer 1940 Sea lily
 Dendrocrinida - Catacrinidae
Delocrinus sp. Miller and Gurley 1890 Sea lily
 Dendrocrinida - Exocrinidae
Exocrinus sp. Strimple 1949 Sea lily
 Dendrocrinida - Apographiocrinidae
Apographiocrinus sp. Moore and Plummer 1940 Sea lily