Holothurian sclerites - Lodgepole limestone, Locality 1, Madison Co., MT (Carboniferous to of the United States)

Where: Madison County, Montana (45.7° N, 111.0° W: paleocoordinates 7.0° S, 44.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lodgepole limestone Formation (Madison Group), Kinderhookian to Kinderhookian (360.7 - 353.8 Ma)

• This paper is concerned with the basal crinoidal unit of the Lodgepole limestone which is less than 10 feet in thickness. Holothurian plates are abundant in the basal two feet but are also found in other beds of this unit.

• group of beds-level stratigraphic resolution

Environment/lithology: fine-grained, shelly/skeletal limestone

• 'This formation is a thick (585 ft) sequence of fine-grained limestones that include some alternating units of medium to coarse crinoidal limestones'.

Size class: microfossils

Preservation: original calcite

Collection methods: chemical, sieve,

• All studied specimens are in the paleontologic collections of the University of Notre Dame (UND), Notre Dame, Indiana and University of Missouri (UMo), Columbia.

Primary reference: R. C. Gutschick, W. F. Canis, and K. G. Brill, Jr. 1967. Kinderhook (Mississippian) holothurian sclerites from Montana and Missouri. Journal of Paleontology 41(6):1461-1480 [M. Patzkowsky/J. Bonelli/J. Bonelli]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41437: authorized by Mark Patzkowsky, entered by James Bonelli on 14.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Ophiocistioidea
  - Rotasacciidae
Microantyx permiana Kornicker and Imbrie 1958
Holothuroidea
 Dendrochirotida - Calclamnidae
Eocaudina columcanthus Gutschick et al. 1967 sea cucumber
Thuroholia cribriformis Gutschick 1954 sea cucumber