PBDB Collection

Porterfield Quarry, 5 miles northeast of Saltville (Ordovician of the United States)

Where: Smyth County, Virginia (36.9° N, 81.7° W: paleocoordinates 29.7° S, 62.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nemagraptus gracilis graptolite zone, Effna Limestone Member (Edinburg Formation), Ashbyan (457.3 - 449.6 Ma)

• Base of unit.

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; limestone

• 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.

Size classes: macrofossils, mesofossils

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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 164296: authorized by Björn Kröger, entered by Björn Kröger on 28.11.2014, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Lingulata
Lingulida - Obolidae	Elliptoglossa rotundata, Elliptoglossa ovalis, "Pachyglossa pachydermata" = Pachyglossella Elliptoglossa rotundata Cooper 1956 Elliptoglossa ovalis Bassler 1919 "Pachyglossa pachydermata" = Pachyglossella
Siphonotretida - Siphonotretidae	Schizambon "sp. 1", "Schizambon cuneatum" = Multispinula cuneata Schizambon "sp. 1" Walcott 1884 "Schizambon cuneatum" = Multispinula cuneata Willard 1928
Acrotretida - Acrotretidae	Conotreta cuspidata, Conotreta plana Conotreta cuspidata Cooper 1956 Conotreta plana Cooper 1956
Rhynchonellata
Pentamerida - Camerellidae	Perimecocoelia triangulata, Perimecocoelia semicostata Perimecocoelia triangulata Perimecocoelia semicostata Cooper 1956
Orthida - Phragmorthidae	Phragmorthis buttsi n. gen. n. sp. Phragmorthis buttsi n. gen. n. sp. Cooper 1956
Orthida - Giraldiellidae	"? Doleroides ponderosus n. sp." = Famatinorthis ponderosus, Scaphorthis "sp. 1", Scaphorthis perplexa n. sp. "? Doleroides ponderosus n. sp." = Famatinorthis ponderosus Cooper 1956 Scaphorthis "sp. 1" Cooper 1956 Scaphorthis perplexa n. sp. Cooper 1956
Orthida - Productorthidae	Productorthis agilera Productorthis agilera
Orthida - Glyptorthidae	Glyptorthis glypta n. sp., Eridorthis inexpecta n. sp. Glyptorthis glypta n. sp. Cooper 1956 Eridorthis inexpecta n. sp. Cooper 1956
Orthida - Hesperorthidae	Ptychopleurella rectangulata n. sp., Ptychopleurella mediocostata n. sp. Ptychopleurella rectangulata n. sp. Cooper 1956 Ptychopleurella mediocostata n. sp. Cooper 1956
Orthida - Orthidae	Taphrorthis peculiaris, Orthambonites divaricatus, "Orthambonites parvicrassicostatus" = Sulevorthis parvicrassicostatus Taphrorthis peculiaris Cooper 1956 Orthambonites divaricatus "Orthambonites parvicrassicostatus" = Sulevorthis parvicrassicostatus Cooper 1956
Orthida - Archaeorthidae	Cyrtonotella grandistriata Cyrtonotella grandistriata Cooper 1956
Orthida - Linoporellidae	Laticrura pionodema n. gen. n. sp. Laticrura pionodema n. gen. n. sp. Cooper 1956
Protorthida - Skenidiidae	Skenidioides transversus n. sp. Skenidioides transversus n. sp.
Strophomenata
Orthotetida - Triplesiidae	Oxoplecia holstonensis, Oxoplecia multicostellata Oxoplecia holstonensis Willard 1928 Oxoplecia multicostellata Cooper 1956
Strophomenida - Christianiidae	Christiania subquadrata Christiania subquadrata Hall 1883
Strophomenida - Leptellinidae	Glyptambonites glyptus n. sp., Palaeostrophomena subtransversa n. sp., Titanambonites crassus Glyptambonites glyptus n. sp. Cooper 1956 Palaeostrophomena subtransversa n. sp. Cooper 1956 Titanambonites crassus
Strophomenida - Bimuriidae	Bimuria immatura n. sp., Bimuria superba Bimuria immatura n. sp. Cooper 1956 Bimuria superba Ulrich and Cooper 1942
Strophomenida - Sowerbyellidae	Ptychoglyptus virginiensis Ptychoglyptus virginiensis Willard 1928
Strophomenida - Furcitellidae	Dactylogonia "sp. 5" Dactylogonia "sp. 5" Ulrich and Cooper 1942
Billingsellida - Gonambonitidae	Kullervo parva n. sp., Kullervo ornata n. sp. Kullervo parva n. sp. Cooper 1956 Kullervo ornata n. sp. Cooper 1956
Trilobita
- Isocolidae	Holdenia typa Holdenia typa Cooper 1953 trilobite