Loc. 5. USGS 17692. low water concrete bridge across Big Piney Creek: Serpukhovian, Arkansas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Stauriida - Lophophyllidae
Lophophyllidium imoense n. sp.
Webb and Sutherland 1993
Gastropoda - Euomphalina - Euomphalidae
Straparollus (Euomphalus) variabilis Jeffery et al. 1994
Jeffery et al. 1994
Straparollus (Euomphalus) konobasis Jeffery et al. 1994
Jeffery et al. 1994
Gastropoda - Bellerophontida - Bellerophontidae
Retispira yochelsoni Jeffery et al. 1994
Jeffery et al. 1994
Gastropoda - Bellerophontida - Euphemitidae
Euphemites whirligigi Jeffery et al. 1994
Jeffery et al. 1994
Gastropoda - Murchisoniina - Soleniscidae
Strobeus informal cf. sp. A Gordon & Yochelson 1987
Jeffery et al. 1994
Gastropoda - Murchisoniina - Gosseletinidae
Glabrocingulum (Glabrocingulum) parasolum Jeffery et al. 1994
Jeffery et al. 1994
Bivalvia - Arcida - Parallelodontidae
Parallelodon cf. cancellosus Mather 1915
see common names

Geography
Country:United States State/province:Arkansas County:Newton
Coordinates: 35.7° North, 93.3° West (view map)
Paleocoordinates:12.1° South, 34.5° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Carboniferous Epoch:Mississippian
Stage:Serpukhovian 10 m.y. bin:Carboniferous 3
*Period:Early/Lower Carboniferous *Epoch:Early/Lower Serpukhovian
*Local age/stage:Late/Upper Chesterian
Key time interval:Serpukhovian
Age range of interval:330.90000 - 323.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Imo
Regional section:Elvirian Regional bed:30 m
Regional order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Elvirian. Appx 30 m above base of fm. JA: late Chesterian is Serpukhovian according to Mii et al. 1999 (GSA Bull 111:960-973)
Lithology and environment
Primary lithology:concretionary,black,gray lithified sandy grainstone
Secondary lithology: "shale"
Includes fossils?Y
Lithology description: ...as much as 104 m of dark-gray to black, fissile, clay shale w/ numerous, large, bright-red, orange, or brown concretions. ...the lower 36 m...contains thin limestones, sandstones, and conglomerates.
Environment:offshore Tectonic setting:cratonic basin
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:OSU,USNM
Taxonomic list comments:Also present are crinoids, bryozoans, brachiopods, bivalves, corals, and nautiloids.
Metadata
Also known as:USGS Locs: 28521-PC, 28522-PC, 28523-PC, 28525-PC. 0.32 km north of Newton-Hohnson County line, where another road takes off to the north.
Database number:5521
Authorizer:J. Alroy, P. Wagner Enterer:M. Sommers, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:1999-10-08 16:33:45 Last modified:2007-02-24 19:38:58
Access level:the public Released:1999-10-08 16:33:45
Creative Commons license:CC BY
Reference information

Primary reference:
19978. R. D. Hoare, M. J., I.I.I. Heaney, and R. H. Mapes. 1989. Bivalves (Mollusca) from the Imo Formation (Mississippian, Chesterian) of North-Central Arkansas. Journal of Paleontology 63(5):582-603 [P. Wagner/P. Wagner]

Secondary references:

11422 D. L. Jeffery, R.D. Hoare, R.H. Mapes and C.J. Brown. 1994. Gastropods (Mollusca) from the Imo Formation (Mississippian, Chesterian) of north-central Arkansas. Journal of Paleontology 68(1):58-79 [P. Wagner/P. Wagner/P. Wagner]
327 G. E. Webb and P. K. Sutherland. 1993. Coral fauna of the Imo Formation, uppermost Chesterian, north-central Arkansas. Journal of Paleontology 67(2):179-193 [J. Alroy/M. Sommers/J. Alroy]