Cedar Springs, Benbolt Fm.: Middle Ordovician, Tennessee

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
? Nautiloidea indet. Agassiz 1847
originally entered as "? Nautiloidea indet."
Tergomya - Cyrtonellida - Cyrtonellidae
Lingulata - Lingulida - Obolidae
Lingulella sp. Salter 1866
Lingulata - Siphonotretida - Siphonotretidae
Rhynchonellata - Orthida - Dalmanellidae
Eremotrema sp. Cooper 1956
Rhynchonellata - Orthida - Paurorthidae
Paurorthis sp. Schuchert and Cooper 1931
Rhynchonellata - Orthida - Plectorthidae
Mimella sp. Cooper 1930
2 species
Plectorthis sp. Hall and Clarke 1892
Rhynchonellata - Orthida - Hesperorthidae
Ptychopleurella sp. Schuchert and Cooper 1931
Rhynchonellata - Orthida - Archaeorthidae
Cyrtonotella sp. Schuchert and Cooper 1931
originally entered as "Cyrtonatella sp."
Rhynchonellata - Orthida - Orthidae
Orthambonites sp. Pander 1830
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
Rhynchonellata - Pentamerida - Camerellidae
Camerella sp. Billings 1859
Strophomenata - Billingsellida - Clitambonitidae
Atelelasma sp. Cooper 1956
Strophomenata - Strophomenida - Plectambonitidae
Isophragma sp. Cooper 1956
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
Strophomenata - Strophomenida - Leptellinidae
Leptellina sp. Ulrich and Cooper 1936
3 species
Palaeostrophomena sp. Holtedahl 1916
Strophomenata - Strophomenida - Strophomenidae
Strophomenata - Strophomenida - Furcitellidae
Dactylogonia sp. Ulrich and Cooper 1942
Strophomenata - Strophomenida - Rafinesquinidae
Ostracoda
Trilobita - Trinucleida - Raphiophoridae
Lonchodomas sp. Angelin 1854
originally entered as "Lochodomas sp."
Trilobita - Asaphida - Asaphidae
Isotelus sp. Dekay 1824
Trilobita - Phacopida - Cheiruridae
Ceraurus sp. Green 1832
Trilobita - Harpetida - Harpetidae
Dolichoharpes sp. Whittington 1949
Paraharpes sp. Whittington 1950
Trilobita - Corynexochida - Illaenidae
Illaenus sp. Dalman 1827
Nanillaenus sp. Jaanusson 1954
Bumastus sp. Murchison 1839
Crinoidea
Crinoidea indet. Miller 1821
archaeocrinid and diabolocrinid
Crinoidea - Homocrinida - Homocrinidae
Apodasmocrinus sp. Warn and Strimple 1977
Glyptosphaeritida - Eumorphocystidae
originally entered as "? Eumorphocystis sp."
Rhombifera - Cheirocrinidae
Demospongiae - Streptosolenidae
originally entered as "? Allosaccus sp."
see common names

Geography
Country:United States State/province:Tennessee
Coordinates: 35.9° North, 84.1° West (view map)
Paleocoordinates:9.1° South, 111.7° West (Wright 2013)
Basis of coordinate:based on political unit
Time
Period: Ordovician Epoch: Middle Ordovician
10 m.y. bin: Ordovician 2-3
*Period:Middle Ordovician
Key time interval: Middle Ordovician
Age range of interval: 471.3 - 458.2 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Benbolt Member:lower
Stratigraphy comments: "M. Ord., lower part of Fm."
Lithology and environment
Primary lithology: "carbonate"
Secondary lithology: "shale"
Environment:shallow subtidal indet.
Geology comments: "intercalated sh and nudular biomicrites and biosparites. shallow to mid shelf (no calcareous algae) (B4 [sic]). tectonically active platform
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:"Walker, Broadhead and Keller, eds. 1980. Univ. Tenn. Dept Geol Sci. No. 4; Cooper 1956 (brachiopods)"
Metadata
Database number:319
Authorizer:J. Sepkoski Enterer:M. Sommers
Modifier:J. Ju Research group:marine invertebrate
Created:1998-11-20 10:07:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:1998-11-20 10:07:18
Creative Commons license:CC0
Reference information

Primary reference:
42189. G. A. Cooper. 1956. New Pennsylvanian Brachiopods. Journal of Paleontology 30(3):521-530 [M. Clapham/K. Badyrka ]

Secondary references:

60917 K. R. Walker, T. W. Broadhead, and F. B. Keller. 1980. Middle Ordovician carbonate shelf to deep water deposition in the southern Appalachians. University of Tennessee Department of Earth and Planetary Sciences, Studies in Geology (4)1-120 [M. Uhen/J. Ju/J. Ju]