UCMP loc. D-5683, Bare Mountain (Ordovician of the United States)

Also known as Ptychopleurella association

Where: Nye County, Nevada (38.0° N, 116.5° W: paleocoordinates 6.2° S, 81.2° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Antelope Valley Formation (Pogonip Group), Whiterockian (470.0 - 457.3 Ma)

• "lower to mid M.Ord. (Whiterockian=Llanvirn)"

Environment/lithology: shallow subtidal; lime mudstone

• "Lime mud (ls and nodular ls) subtidal (BA3) miogeocline (stable)"

Size class: macrofossils

Primary reference: R. J., J.r. Ross and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D:D1-D4 [S. Finnegan/S. Finnegan/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 301: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Berry, Lawson and Yancey 1979. Ross 1967 Prof.Pap 523-D"
Show authors, comments, and common names
unclassified
  -
Weirchellatia sp., Paterulus sp.
Gastropoda
 Murchisoniina - Lophospiridae
? Lophospira sp.
? Lophospira sp. Whitfield 1886 snail
originally entered as "? Lophospira sp."
Rhynchonellata
 Orthida - Orthidae
Orthambonites sp.
Orthambonites sp. Pander 1830
 Orthida - Hesperorthidae
Ptychopleurella sp., Hesperorthis sp.
Ptychopleurella sp. Schuchert and Cooper 1931
Hesperorthis sp. Schuchert and Cooper 1931
 Orthida - Plaesiomyidae
? Valcourea sp.
? Valcourea sp. Raymond 1911
originally entered as "? Valcourea sp."
 Orthida - Plectorthidae
Desmorthis planus
Desmorthis planus Ross and Barnes 1967
 Protorthida - Skenidiidae
Skenidioides oklahomensis
Strophomenata
 Billingsellida - Clitambonitidae
Atelelasma primotica
Atelelasma primotica Ross and Barnes 1967
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
 Strophomenida - Leptellinidae
"Leptellina occidentalis" = Leptellina (Leptellina) occidentalis
"Leptellina occidentalis" = Leptellina (Leptellina) occidentalis Ulrich and Cooper 1938
 Strophomenida - Strophomenidae
? Strophomena sp.
? Strophomena sp. Rafinesque and De Blainville 1824
originally entered as "? Strophomena sp."
Ostracoda
 Hollinocopida - Primitiopsidae
Anisocyamus sp.
Trilobita
 Asaphida - Asaphidae
Stegnopsis sp.
Stegnopsis sp. Whittington 1965 trilobite
 Asaphida - Remopleurididae
Remopleurides cf. simulus
Remopleurides cf. simulus Whittington 1959 trilobite
originally entered as "Remopleurides cf. simulus"
 Phacopida - Cheiruridae
? Ceraurus sp.
? Ceraurus sp. Green 1832 trilobite
originally entered as "? Ceraurus sp."
 Phacopida - Pliomeridae
Pseudomera sp.
Pseudomera sp. Holliday 1942 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp.
Calyptaulax sp. Cooper 1930 trilobite
Pterobranchia
 Dendroidea - Acanthograptidae
Dictyonema sp.
Dictyonema sp. Hall 1851 graptolite
Cystoidea
  -
Cystoidea indet.
Cystoidea indet. von Buch 1846