Glen Park Formation, stratigraphic locality 393 (Brown Branch), Pike Co., IL, Ea: Tournaisian, Illinois

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Orthotetida - Schuchertellidae
Schuchertella hardinensis
Strophomenata - Strophomenida - Rugosochonetidae
Plicochonetes ? glenparkensis
Rugosochonetes pikensis
Rugosochonetes cf. gregarius
Strophomenata - Strophomenida - Rafinesquinidae
Leptagonia cf. missouriensis
Strophomenata - Productida - Sentosiidae
Sentosia ? ignota
Strophomenata - Productida - Productidae
Semiproductus sp.
Mesoplica ? mesicostalis
Strophomenata - Productida - Productellidae
Orbinaria ? brownensis
Avonia sp.
Argentiproductus auriculatus
Strophomenata - Productida - Monticuliferidae
Ovatia nascens
Strophomenata - Productida - Araksalosiidae
Whidbornella curtirostris
Ruthiphiala sublaevis
Rhynchonellata - Rhynchonellida - Rhynchotetradidae
Paraphorhynchus sp.
Rhynchonellata - Rhynchonellida - Stenoscismatidae
Sedenticellula hamburgensis (Weller 1910)
Rhynchonellata - Rhynchonellida - Rhynchoporidae
Rhynchopora hamburgensis
Rhynchopora prisca
Rhynchonellata - Orthida - Rhipidomellidae
Rhipidomella rockportensis
Rhynchonellata - Spiriferinida - Syringothyrididae
Syringothyris extenuata
Rhynchonellata - Spiriferinida - Dimegelasmidae
Zeugopleura jeffersonensis
Rhynchonellata - Spiriferida - Eudoxinidae
Eudoxina subrotunda
Rhynchonellata - Spiriferida - Martiniidae
Eomartiniopsis kinderhookensis
Rhynchonellata - Spiriferida - Spiriferidae
Unispirifer senex
Parallelora nupera
Rhynchonellata - Spiriferida - Brachythyrididae
Brachythyris hortonensis
Rhynchonellata - Spiriferida - Elythidae
Kitakamithyris cooperensis
Rhynchonellata - Spiriferida - Mucrospiriferidae
Tylothyris missouriensis (Weller 1906)
Rhynchonellata - Athyridida - Athyrididae
Composita matutina
Rhynchonellata - Athyridida - Meristidae
Camarophorella cf. buckleyi
Rhynchonellata - Terebratulida - Beecheriidae
Beecheria paraplicata
Rhynchonellata - Terebratulida - Cranaenidae
Hamburgia typa
Rhynchonellata - Terebratulida - Cryptonellidae
Dielasmella compressa
Lingulata - Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847
see common names

Geography
Country:United States State/province:Illinois County:Pike
Coordinates: 39.6° North, 91.1° West (view map)
Paleocoordinates:21.6° South, 36.9° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Carboniferous Epoch:Early/Lower Mississippian
Stage:Tournaisian 10 m.y. bin:Carboniferous 1
*Period:Early/Lower Carboniferous *Epoch:Early/Lower Tournaisian
Key time interval:Tournaisian
Age range of interval:358.90000 - 346.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Glen Park
Local section:393 - Brown Branch
Stratigraphic resolution:group of beds
Stratigraphy comments: This formation was previously known as the Horton Creek member of the Hannibal Formation. Due to the existence of a paraconformity between the Devonian-Mississippian contact, the exact stratigraphic position of these beds has been corrected several times since their first description in the early 1900's. Carter contains a complete description of the history of work done on these sections.
Lithology and environment
Primary lithology: "limestone"
Lithology description: carter states that the fossils are found in only one lithology at each collecting locality, often only in one bed. elsewhere in the paper he states by far the most divese fauna occurs in the thin biomicrite at brown branch (sl393) and that adult sized brachiopods were found in the arenaceous limestone at this locality. and in the stratigraphic localities section, he describes this locality as a basal micritic limestone bed with geodes and conglomeratic clasts at east end of bluff highly fossiliferous. however, in general, the formation is described as containing fossils (brachiopods in particular) in biomicrite, oosparite, silty dolomite or dolomitic limestone, and calcareous sandstone or arenaceous limestone.
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: This collection from the Carnegie Museum of Natural History and the Illinois State Geological Survey.
Taxonomic list comments:Although molluscs are abundant at the type section of the formation and other macro invertebrates are very rare, only the brachiopod data are reported in this list.
Metadata
Database number:5795
Authorizer:A. Miller Enterer:D. Carlson
Modifier:C. Ferguson Research group:marine invertebrate
Created:1999-12-02 14:45:15 Last modified:2004-03-13 22:45:01
Access level:the public Released:2000-11-20 13:53:28
Creative Commons license:CC BY
Reference information

Primary reference:

351. J. L. Carter. 1988. Early Mississippian Brachiopods from the Glen Park Formation of Illinois and Missouri. Bulletin of Carnegie Museum of Natural History (27)1-82 [A. Miller/D. Carlson]