LaSalle Limestone Member, Bond Fm., near Pontiac, Livingstone County, IL: Missourian, Illinois

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Demospongiae
Belemnospongia parmula Rigby et al. 1979
Rigby et al. 1979
Crinoidea - Ulocrinidae
Probletocrinus curtus n. gen., n. sp. Strimple and Moore 1971
Crinoidea - Ampelocrinida - Ampelocrinidae
Halogetocrinus n. gen. paucus (Strimple and Moore 1971)
Chlidonocrinus erectus n. sp.
Crinoidea - Ampelocrinida - Calceolispongiidae
Allosocrinus bronaughi Strimple 1949
Crinoidea - Taxocrinida - Synerocrinidae
Euonychocrinus simplex n. sp. Strimple and Moore 1971
Crinoidea - Sagenocrinida - Euryocrinidae
Paramphicrinus oklahomaensis n. gen., n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Graphiocrinidae
Contocrinus coupi n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Blothrocrinidae
Elibatocrinus elegans n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Stellarocrinidae
Brabeocrinus christinae n. gen., n. sp. Strimple and Moore 1971
Stellarocrinus cf. virgilensis
Stellarocrinus bilineatus n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Laudonocrinidae
Laudonocrinus subsinuatus
Crinoidea - Dendrocrinida - Pelecocrinidae
Exoriocrinus n. gen. lasallensis (Worthen 1875)
Crinoidea - Dendrocrinida - Apographiocrinidae
Apographiocrinus typicalis Moore and Pummer 1940
Crinoidea - Dendrocrinida - Pachylocrinidae
Plummericrinus erectus
Crinoidea - Dendrocrinida - Exocrinidae
Exocrinus wanni
Crinoidea - Dendrocrinida - Scytalocrinidae
Haeretocrinus macoupinesis
Haeretocrinus wagneri n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Aesiocrinidae
Moundocrinus cf. osagensis
Polusocrinus avanti
Crinoidea - Dendrocrinida - Pirasocrinidae
Stenopecrinus cf. planus
Stenopecrinus sp. Strimple 1961
Crinoidea - Dendrocrinida - Anobasicrinidae
Terpnocrinus ocoyaensis n. gen., n. sp. Strimple and Moore 1971
Sciadiocrinus tegillum n. sp. Strimple and Moore 1971
Anobasicrinus brevis n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Galateacrinidae
Galateacrinus coacervatus n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Staphylocrinidae
Microcaracrinus conjugulus n. sp. Strimple and Moore 1971
Crinoidea - Dendrocrinida - Cromyocrinidae
Parulocrinus pontiacensis n. sp. Strimple and Moore 1971
Ulocrinus sangamonensis
Ulocrinus convexus
Crinoidea - Dendrocrinida - Catacrinidae
Endelocrinus tumidus
Crinoidea - Dendrocrinida - Erisocrinidae
Erisocrinus typus Meek and Worthen 1865
Crinoidea - Poteriocrinina - Clathrocrinidae
Clathrocrinus clinatus n. sp. Strimple and Moore 1971
Clathrocrinus clathratus n. gen., n. sp. Strimple and Moore 1971
Crinoidea - Pisocrinida - Pisocrinidae
Polygonocrinus spiniferus n. sp. Strimple and Moore 1971
Crinoidea - Allagecrinidae
Isoallagecrinus lasallensis n. sp. Strimple and Moore 1971
Crinoidea - Monobathrida - Dichocrinidae
Dichocrinus nola n. sp. Strimple and Moore 1971
Asteroidea - Calliasterellidae
Calliasterella americana Kesling and Strimple 1966
Blake and Elliott 2003 1 specimen
see common names

Geography
Country:United States State/province:Illinois County:Livingston County
Coordinates: 40.8° North, 88.7° West (view map)
Paleocoordinates:4.0° South, 22.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Carboniferous Epoch:Pennsylvanian
Stage:Kasimovian 10 m.y. bin:Carboniferous 5
Key time interval:Missourian
Age range of interval:305.90000 - 303.70000 m.y. ago
Stratigraphy
Geological group:McLeansboro Formation:Bond Member:LaSalle Limestone
Stratigraphic resolution:member
Lithology and environment
Primary lithology:gray,blue "shale"
Secondary lithology: "limestone"
Includes fossils?Y
Lithology description: 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
Environment:marine indet.
Geology comments: the shale deposits are interpreted as quiet water environments without perceptible wave or curent actions
Taphonomy
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Abundance in sediment:abundant
Collection methods and comments
Collection methods:bulk,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: All specimens reposited in the Illinois Geological Survey, Urbana, Illinois
Metadata
Database number:51191
Authorizer:J. Alroy, L. Villier, W. Kiessling Enterer:D. Lamb, U. Merkel, L. Villier
Modifier:D. Lamb Research group:marine invertebrate
Created:2005-05-31 14:59:24 Last modified:2005-05-31 18:00:49
Access level:the public Released:2005-05-31 14:59:24
Creative Commons license:CC BY
Reference information

Primary reference:
13642. 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]

Secondary references:

24441 D. B. Blake and D. R. Elliott. 2003. Ossicular homologies, systematics, and phylogenetic implications of certain North American Carboniferous asteroids (Echinodermata). Journal of Paleontology 77(3):476-489 [L. Villier/L. Villier]
36562 J. K. Rigby, R. Keyes, and A. Horowitz. 1979. Two new Mississippian sponges from northeastern Alabama. Journal of Paleontology 53(3):709-719 [W. Kiessling/U. Merkel]