Seehorn Hollow micromorph crinoids (Carboniferous of the United States)

Where: Adams County, Illinois (39.8° N, 91.3° W: paleocoordinates 24.0° S, 37.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: McCraney Limestone Formation, Kinderhookian (358.9 - 352.0 Ma)

• According to Stainbrook (1950) the McCraney is correlative with the Louisiana Limestone, below the Glen Park and Hannibal strata, thus it falls into the Hastarian.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, dolomitic, silty lime mudstone

• limestone consists of thin beds of lithographic limestone and fine grained dolomite. the soft material between beds probably includes shaly partings and weathered limestone.

Collection methods: surface (in situ), chemical, mechanical, sieve,

Primary reference: N. G. Lane and G. D. Sevastopulo. 1986. Micromorph crinoid fauna of the McCraney Limestone (Mississippian, Kinderhookian) of western Illinois. Journal of Paleontology 60(3):736-743 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5749: authorized by John Alroy, entered by Mike Sommers on 19.11.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Authors state that a "variety of brachiopods" exist, then list a some, stating "These include..." so not sure whether they are all listed. Also not listed but noted as present are forams, rare bryozoans, and (rare) small gastropods.
Show authors, comments, and common names
unclassified
  -
? Trigera sp.
Blastoidea
 Pentremitida - Pentremitidae
Pentremoblastus sp.
Pentremoblastus sp. Fay and Koenig 1963 blastoid
Crinoidea
 Dendrocrinida - Scytalocrinidae
Scytalocrinidae indet., Hypselocrinus maccabei
Scytalocrinidae indet. Moore and Laudon 1943 Sea lily
Hypselocrinus maccabei Miller and Gurley 1894 Sea lily
 Allagecrinoidea - Allagecrinidae
Allagecrinus mccraneyensis n. sp.
 Monobathrida - Hexacrinitidae
Hexacrinites mississippiensis n. sp.
Craniata
 Craniida - Craniidae
Crania sp.
Crania sp. Retzius 1781
Strophomenata
 Strophomenida - Rugosochonetidae
Rugosochonetes sp.
Rugosochonetes sp. Sokolskaja 1950
Rhynchonellata
 Spiriferida - Ambocoeliidae
Ambocoelia sp., Crurithyris sp.
Ambocoelia sp. Hall 1860
Crurithyris sp. George 1931
 Orthida - Rhipidomellidae
Rhipidomella sp.
 Terebratulida -
Selenella sp.
Selenella sp. Hall and Clarke 1894
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail