Cedar Springs, mud mounds (Ordovician of the United States)

Also known as Reef 1865

Where: Grainger County, Tennessee (36.4° N, 83.3° W: paleocoordinates 29.2° S, 63.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Rockdell Formation, Caradoc (458.4 - 449.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• open shallow subtidal
• small mud mounds (0.3-2.0 m), sparsely fossiliferous, encrusting bryozoans and algae dominant

Size class: macrofossils

Primary reference: S. C. Ruppel and K. R. Walker. 1982. Sedimentology and distinction of carbonate buildups: Middle Ordovician, east Tennessee. Journal of Sedimentary Petrology 52(4):1055-1071 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 80597: authorized by Wolfgang Kiessling, entered by Uta Merkel on 29.04.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chlorophyceae
 Dasycladales - Seletonellaceae
"Contexta sp." = Dasyporella
"Contexta sp." = Dasyporella Stolley 1893
Hormogoneae
 Nostocales - Rivulariaceae
? Spongiostroma sp.
? Spongiostroma sp. Guerich 1906
unclassified
  -
Porifera indet.
Porifera indet. Grant 1836
Stenolaemata
 Cyclostomata - Diploclemidae
Diploclema sp.
Diploclema sp. Ulrich 1889
  - Phylloporinidae
Phylloporina sp.
Phylloporina sp. Foerste 1887
 Rhabdomesida - Rhabdomesidae
Ottoseetaxis sp.
 Trepostomida -
Nicholsonella sp.
Nicholsonella sp. Ulrich 1890
 Trepostomata - Batostomellidae
Bythopora sp.
Bythopora sp. Miller and Dyer 1878
 Cryptostomata - Arthrostylidae
Helopora sp.
Helopora sp. Hall 1851
 Cryptostomata - Ptilodictyidae
Stictoporella sp.
Stictoporella sp. Ulrich 1882
 Cryptostomata - Rhinidictyidae
Pachydictya sp., Athrophragma sp., Stictopora sp., "Astreptodictya sp." = Trigonodictya
Pachydictya sp. Ulrich 1882
Athrophragma sp.
listed as Anthrophragma
Stictopora sp. Hall 1847
"Astreptodictya sp." = Trigonodictya
 Cystoporata - Ceramoporidae
Coeloclema sp.
Coeloclema sp. Ulrich 1882
 Cystoporata - Constellariidae
Constellaria sp.
Constellaria sp. Dana 1846
Trilobita
  -
Trilobita indet.
Trilobita indet. Walch 1771 trilobite
unclassified
  -
Echinodermata indet.