Porterfield Quarry, 5 miles northeast of Saltville: Ashbyan, Virginia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Pentamerida - Camerellidae
Perimecocoelia triangulata
Cooper 1956
Perimecocoelia semicostata Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Linoporellidae
Laticrura pionodema n. gen., n. sp. Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis glypta n. sp. Cooper 1956
Cooper 1956
Eridorthis inexpecta n. sp. Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Productorthidae
Productorthis agilera
Cooper 1956
Rhynchonellata - Orthida - Orthidae
Orthambonites parvicrassicostatus Cooper 1956
Cooper 1956
recombined as Sulevorthis parvicrassicostatus
Orthambonites divaricatus
Cooper 1956
Taphrorthis peculiaris Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Archaeorthidae
Cyrtonotella grandistriata Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Hesperorthidae
Ptychopleurella rectangulata n. sp. Cooper 1956
Cooper 1956
Ptychopleurella mediocostata n. sp. Cooper 1956
Cooper 1956
Rhynchonellata - Orthida - Giraldiellidae
Scaphorthis informal sp. 1 Cooper 1956
Cooper 1956
Scaphorthis perplexa n. sp. Cooper 1956
Cooper 1956
? Doleroides ponderosus n. sp. Cooper 1956
Cooper 1956
recombined as Famatinorthis ponderosus
Rhynchonellata - Orthida - Phragmorthidae
Phragmorthis buttsi n. gen., n. sp. Cooper 1956
Cooper 1956
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides transversus n. sp.
Cooper 1956
Strophomenata - Strophomenida - Sowerbyellidae
Ptychoglyptus virginiensis Willard 1928
Cooper 1956
Strophomenata - Strophomenida - Christianiidae
Christiania subquadrata (Hall 1883)
Cooper 1956
Strophomenata - Strophomenida - Leptellinidae
Glyptambonites glyptus n. sp. Cooper 1956
Cooper 1956
Palaeostrophomena subtransversa n. sp. Cooper 1956
Cooper 1956
Titanambonites crassus
Cooper 1956
Strophomenata - Strophomenida - Bimuriidae
Bimuria superba Ulrich and Cooper 1942
Cooper 1956
Bimuria immatura n. sp. Cooper 1956
Cooper 1956
Strophomenata - Strophomenida - Furcitellidae
Dactylogonia informal sp. 5 Ulrich and Cooper 1942
Cooper 1956
Strophomenata - Orthotetida - Triplesiidae
Oxoplecia holstonensis Willard 1928
Cooper 1956
Oxoplecia multicostellata Cooper 1956
Cooper 1956
Strophomenata - Billingsellida - Gonambonitidae
Kullervo ornata n. sp. Cooper 1956
Cooper 1956
Kullervo parva n. sp. Cooper 1956
Cooper 1956
Lingulata - Acrotretida - Acrotretidae
Conotreta plana Cooper 1956
Cooper 1956
Conotreta cuspidata Cooper 1956
Cooper 1956
Lingulata - Lingulida - Obolidae
Elliptoglossa rotundata Cooper 1956
Cooper 1956
Elliptoglossa ovalis (Bassler 1919)
Cooper 1956
Pachyglossa pachydermata
Cooper 1956
replaced by Pachyglossella
Lingulata - Siphonotretida - Siphonotretidae
Schizambon cuneatum (Willard 1928)
Cooper 1956
original and current combination Schizambon cuneatus
Schizambon informal sp. 1 Walcott 1884
Cooper 1956
Trilobita - Isocolidae
Holdenia typa Cooper 1953
see common names

Geography
Country:United States State/province:Virginia County:Smyth
Coordinates: 36.9° North, 81.7° West (view map)
Paleocoordinates:29.7° South, 62.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Ordovician Epoch: Late Ordovician
10 m.y. bin: Ordovician 4-5
Key time interval: Ashbyan Graptolite zone:  Nemagraptus gracilis
Age range of interval: 457 - 449.8 m.y. ago
Stratigraphy
Formation:Edinburg Member:Effna Limestone
Stratigraphic resolution:group of beds
Stratigraphy comments: Base of unit.
Lithology and environment
Primary lithology: "limestone"
Lithology description: The formation is generally composed of calcarenite or shell debris or both. At the type locality it attains a thickness of about 221 feet, but it is thinner to the southwest along the same belt and also in the northern belt. One of the best places for the study of this formation is at the Porterfield Quarry, 5 miles east of Saltville. At this place the Effna formed a great reef (now quarried away) at the base of the Rich Valley formation.
Environment:reef, buildup or bioherm
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Metadata
Database number:164296
Authorizer:B. Kröger, P. Wagner Enterer:B. Kröger, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Created:2014-11-28 10:07:03 Last modified:2020-05-20 14:18:31
Access level:the public Released:2014-11-28 10:07:03
Creative Commons license:CC BY
Reference information

Primary reference:

53613. H. B. Whittington. 1956. The trilobite family Isocolidae. Journal of Paleontology 30(5):1193-1198 [B. Kröger/B. Kröger]

Secondary references:

44678 G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner]