UI locality Z-1F, Eagle City Ls, Hampton Fm, Marshall Co, Iowa: Kinderhookian, Iowa

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Orthotetida - Schuchertellidae
Streptorhynchus sp. King 1850
Schuchertella sp. Girty 1904
Rhynchonellata - Athyridida - Retziidae
Eumetria sp.
Rhynchonellata - Athyridida - Athyrididae
Composita sp. Brown 1849
Planalvus gibberosa n. gen., n. sp. Carter 1971
Cleiothyridina aff. crassicardinalis
Cleiothyridina aff. Athyris crassicardinalis
Rhynchonellata - Spiriferinida - Syringothyrididae
? Verkhotomia sp.
Rhynchonellata - Spiriferinida - Punctospiriferidae
Punctospirifer solidirostris (White 1860)
Rhynchonellata - Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
Mirifusella fortunata n. gen., n. sp.
Unispirifer cf. minnewankensis
Rhynchonellata - Orthida - Rhipidomellidae
Rhipidomella cf. dalyana
Perditocardinia iowensis n. sp.
Rhynchonellata - Rhynchonellida - Rhynchoporidae
"Rhynchopora" sp. King 1865
Rhynchonellata - Terebratulida - Dielasmatidae
Dielasma sp. King 1856
Rhynchonellata - Terebratulida - Beecheriidae
Beecheria sp. Hall and Clarke 1893
see common names

Geography
Country:United States State/province:Iowa County:Marshall
Coordinates: 42.0° North, 92.8° West (view map)
Paleocoordinates:20.9° South, 36.9° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Carboniferous Epoch:Mississippian
Stage:Tournaisian 10 m.y. bin:Carboniferous 1
Key time interval:Kinderhookian
Age range of interval:358.90000 - 351.90000 m.y. ago
Stratigraphy
Formation:Hampton Member:Eagle City Limestone
Local section:UI locality Z-1F
Stratigraphic resolution:bed
Stratigraphy comments: "Without more data I ... tentatively accept Laudon's (1931, p. 412) assignment of a Kinderhookian age for the upper Hampton Formation. Nevertheless, ther is no evidence from the brachiopod fauna, including the nonsilicified specimens, that would preclude and early Osagian age for these beds, especially considering the possibility that the upper Hampton formation sequence of central Iowa could conceivably represent a nearly continuous record of latest Kinderhookian - earliest Osagian sedimentation."
Lithology and environment
Primary lithology:ooidal lithified "limestone"
Secondary lithology:dolomitic lithified "limestone"
Lithology description: Anderson (1969) gives a brief description of the Eagle City Limestone in Marshall County Iowa: "interbedded oolitic limestonees and dolomitic limestones".
Environment:shallow subtidal indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Collection methods and comments
Collection methods:bulk,chemical,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: Type specimens are in the collections at the Univeristy of Illinois, Urbana.
Metadata
Database number:62482
Authorizer:N. Heim Enterer:N. Heim
Modifier:N. Heim Research group:marine invertebrate
Created:2006-07-20 12:11:27 Last modified:2006-07-20 15:40:01
Access level:the public Released:2006-07-20 12:11:27
Creative Commons license:CC BY
Reference information

Primary reference:
18047. J. L. Carter. 1971. New early Mississippian silicified brachiopods from central Iowa. Smithsonian Contributions to Paleobiology 3:245-255 [N. Heim/N. Heim]

Secondary references:

18048 W. I. Anderson. 1969. Lower Mississippian conodonts from northern Iowa. Journal of Paleontology 43(4):916-928 [N. Heim/N. Heim]