I-55 section (Little Saline Creek), Ste. Genevieve Co., Missouri: Chadian - Arundian, Missouri

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea - Monobathrida - Dichocrinidae
Paradichocrinus planus
Crinoidea - Monobathrida - Batocrinidae
Macrocrinus mundulus (Hall 1859)
see common names

Geography
Country:United States State/province:Missouri County:Ste. Genevieve
Coordinates: 37.9° North, 90.0° West (view map)
Paleocoordinates:17.8° South, 35.9° West
Basis of coordinate:based on nearby landmark
Time
Period: Carboniferous Epoch: Mississippian
Stage: Visean 10 m.y. bin: Carboniferous 2
Key time interval: Chadian - Arundian Conodont zone:  Gnathodus texanus
Age range of interval: 346.7 - 340.2 m.y. ago
Stratigraphy
Formation:Keokuk Limestone
Stratigraphy comments: JA: entered as Mississippian, but the Keokuk Limestone falls entirely within the Chadian to Arundian Gnathodus texanus zone (Work and Mason 2004)
Lithology and environment
Environment:marine indet.
Geology comments: no litho info given
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:list is only of crinoid material now known from this new location.
Metadata
Database number:727
Authorizer:J. Alroy Enterer:M. Sommers
Modifier:J. Alroy Research group:marine invertebrate
Created:1999-03-02 13:53:00 Last modified:2009-08-18 20:00:05
Access level:the public Released:2000-11-20 13:53:10
Creative Commons license:CC BY
Reference information

Primary reference:

24. W. I. Ausich and T. W. Kammer. 1991. Systematic revisions to Aorocrinus, Dorycrinus, Macrocrinus, Paradichocrinus, Strotocrinus, and Uperocrinus: Mississippian camerate crinoids (Echinodermata) from the stratotype region. Journal of Paleontology 65(6):936-944 [J. Alroy/M. Sommers/J. Alroy]