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Holston, USA

Formation	Holston
Age:	461 - 450 Ma Ordovician
Interval	Caradocian
Lithology	reef rocks, grainstone, wackestone/"reef rocks"
Number of Collections	6
Number of Occurrences	92

Recorded Sample Locations

Location	Region	Stratigraphic Name
Alcoa Highway	Knox County, Tennessee, USA	Holston
Deane Quarry	Knox County, Tennessee, USA	Holston
Red House Branch	Hamblen County, Tennessee, USA	Holston
Near Goodwins Ferry on New River	Pulaski County, Virginia, USA	Holston

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Sowerbyites triseptatus species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Syndielasmatidae : Sowerbyites : *Sowerbyites triseptatus*	460.9 - 449.5 Ma Ordovician
Bryozoa phylum	2	Animalia : Bryozoa	460.9 - 449.5 Ma Ordovician
Helopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Arthrostylidae : *Helopora*	460.9 - 449.5 Ma Ordovician
Graptodictya sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Ptilodictyidae : *Graptodictya*	460.9 - 449.5 Ma Ordovician
Athrophragma sp. genus	6	Animalia : Bryozoa : Stenolaemata : *Athrophragma*	460.9 - 449.5 Ma Ordovician
Chazydictya sp. genus	6	Animalia : Bryozoa : Stenolaemata : *Chazydictya*	460.9 - 449.5 Ma Ordovician
Escharopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Escharoporidae : *Escharopora*	460.9 - 449.5 Ma Ordovician
Pachydictya sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Rhinidictyidae : *Pachydictya*	460.9 - 449.5 Ma Ordovician
Stictopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Ptilodictyidae : *Stictopora*	460.9 - 449.5 Ma Ordovician
Stictoporella sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Stictoporellidae : *Stictoporella*	460.9 - 449.5 Ma Ordovician
Diploclema sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Diastoporidae : *Diploclema*	460.9 - 449.5 Ma Ordovician
Coeloclema sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cystoporida : Ceramoporidae : *Coeloclema*	460.9 - 449.5 Ma Ordovician
Crepipora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cystoporida : Ceramoporidae : *Crepipora*	460.9 - 449.5 Ma Ordovician
Constellaria sp. genus	6	Animalia : Bryozoa : Stenolaemata : Constellariidae : *Constellaria*	460.9 - 449.5 Ma Ordovician
Ottoseetaxis sp. genus	6	Animalia : Bryozoa : Stenolaemata : *Ottoseetaxis*	460.9 - 449.5 Ma Ordovician
Phylloporina sp. genus	6	Animalia : Bryozoa : Stenolaemata : Fenestrida : Phylloporinidae : *Phylloporina*	460.9 - 449.5 Ma Ordovician
Monotrypa sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Monotrypa*	460.9 - 449.5 Ma Ordovician
Bythopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Batostomellidae : *Bythopora*	460.9 - 449.5 Ma Ordovician
Hemiphragma sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Hemiphragma*	460.9 - 449.5 Ma Ordovician
Diplotrypa sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Diplotrypa*	460.9 - 449.5 Ma Ordovician
Mesotrypa sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Monticuliporidae : *Mesotrypa*	460.9 - 449.5 Ma Ordovician
Monticulipora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Monticuliporidae : *Monticulipora*	460.9 - 449.5 Ma Ordovician
Prasopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Monticuliporidae : *Prasopora*	460.9 - 449.5 Ma Ordovician
Eridotrypa sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Aisenvergiidae : *Eridotrypa*	460.9 - 449.5 Ma Ordovician
Amplexopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Amplexoporidae : *Amplexopora*	460.9 - 449.5 Ma Ordovician
Batostoma sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Batostoma*	460.9 - 449.5 Ma Ordovician
Calopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : *Calopora*	460.9 - 449.5 Ma Ordovician
Champlainopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : *Champlainopora*	460.9 - 449.5 Ma Ordovician
Newportopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : *Newportopora*	460.9 - 449.5 Ma Ordovician
Nicholsonella sp. genus	6	Animalia : Bryozoa : Stenolaemata : Constellariidae : *Nicholsonella*	460.9 - 449.5 Ma Ordovician
Peronopora sp. genus	6	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Monticuliporidae : *Peronopora*	460.9 - 449.5 Ma Ordovician

References

Willard B. (1928) The brachiopods of the Ottosee and Holston formations of Tennessee and Virginia, Bulletin of the Harvard Museum of Comparative Zoology 68, 255-292

Walker K. R., Ferrigno K. F. (1973) Major Middle Ordovician reef tract in East Tennessee, American Journal of Science 273, 294-325

Ruppel S. C., Walker K. R. (1982) Sedimentology and distinction of carbonate buildups: Middle Ordovician, east Tennessee, Journal of Sedimentary Petrology 52 4, 1055-1071

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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