LaSalle Limestone Member, Bond Fm., near Pontiac, Livingstone County, IL (Carboniferous of the United States)

Where: Livingston County County, Illinois (40.8° N, 88.7° W: paleocoordinates 4.0° S, 22.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: LaSalle Limestone Member (Bond Formation), Missourian (306.0 - 303.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; gray, blue shale and limestone

• the shale deposits are interpreted as quiet water environments without perceptible wave or curent actions
• Crinoids were found embedded in a depression (a shaley pocket) filled with blue-gray marine shale, 4.5 ft. in depth; the secondary lithology, limestone, is about 12.5 ft thick and underlies the shaley pockets

Size class: macrofossils

Collection methods: bulk,

• All specimens reposited in the Illinois Geological Survey, Urbana, Illinois

Primary reference: H. L. Strimple and R. C. Moore. 1971. Crinoids of the LaSalle Limestone (Pennsylvanian) of Illinois. University of Kansas Paleontological Contributions (55)5-48 [J. Alroy/D. Lamb/D. Lamb]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51191: authorized by John Alroy, entered by David Lamb on 31.05.2005, edited by Loic Villier and Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

Asteroidea
 Ambuloasteroidea - Calliasterellidae
Calliasterella americana1 Kesling and Strimple 1966 sea star
Crinoidea
 Monobathrida - Dichocrinidae
Dichocrinus nola n. sp. Strimple and Moore 1971 Sea lily
 Taxocrinida - Synerocrinidae
Euonychocrinus simplex n. sp. Strimple and Moore 1971 Sea lily
 Sagenocrinida - Euryocrinidae
Paramphicrinus oklahomaensis n. gen. n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Aesiocrinidae
 Dendrocrinida - Graphiocrinidae
Contocrinus coupi n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Blothrocrinidae
Elibatocrinus elegans n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Exocrinidae
 Dendrocrinida - Pirasocrinidae
Stenopecrinus sp. Strimple 1961 Sea lily
 Dendrocrinida - Apographiocrinidae
Apographiocrinus typicalis Moore and Pummer 1940 Sea lily
 Dendrocrinida - Pachylocrinidae
 Dendrocrinida - Erisocrinidae
Erisocrinus typus Meek and Worthen 1865 Sea lily
 Dendrocrinida - Catacrinidae
 Dendrocrinida - Galateacrinidae
Galateacrinus coacervatus n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Staphylocrinidae
Microcaracrinus conjugulus n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Laudonocrinidae
 Dendrocrinida - Stellarocrinidae
Stellarocrinus bilineatus n. sp. Strimple and Moore 1971 Sea lily
Brabeocrinus christinae n. gen. n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Pelecocrinidae
Exoriocrinus lasallensis n. gen. Worthen 1875 Sea lily
 Dendrocrinida - Cromyocrinidae
Parulocrinus pontiacensis n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Scytalocrinidae
Haeretocrinus wagneri n. sp. Strimple and Moore 1971 Sea lily
 Dendrocrinida - Anobasicrinidae
Anobasicrinus brevis n. sp. Strimple and Moore 1971 Sea lily
Terpnocrinus ocoyaensis n. gen. n. sp. Strimple and Moore 1971 Sea lily
Sciadiocrinus tegillum n. sp. Strimple and Moore 1971 Sea lily
 Poteriocrinina - Clathrocrinidae
Clathrocrinus clathratus n. gen. n. sp. Strimple and Moore 1971 Sea lily
Clathrocrinus clinatus n. sp. Strimple and Moore 1971 Sea lily
 Cladida - Ulocrinidae
Probletocrinus curtus n. gen. n. sp.
Probletocrinus curtus n. gen. n. sp. Strimple and Moore 1971 Sea lily
 Ampelocrinida - Ampelocrinidae
Halogetocrinus paucus n. gen. Strimple and Moore 1971 Sea lily
Chlidonocrinus erectus n. sp. Sea lily
 Ampelocrinida - Calceolispongiidae
Allosocrinus bronaughi Strimple 1949 Sea lily
 Disparida - Allagecrinidae
Isoallagecrinus lasallensis n. sp. Strimple and Moore 1971 Sea lily
 Pisocrinida - Pisocrinidae
Polygonocrinus spiniferus n. sp. Strimple and Moore 1971 Sea lily
Demospongiae
 Tetractinomorpha -
Belemnospongia parmula2 Rigby et al. 1979 demosponge