USGS 2920 green, El Capitan, Guadalupe Mountains (Permian of the United States)

Where: Texas (31.8° N, 104.8° W: paleocoordinates 3.4° N, 33.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cutoff Formation, Roadian (272.3 - 268.8 Ma)

• Upper partion of the "dark limestone"

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

Size class: macrofossils

Preservation: mold/impression

Primary reference: G. H. Girty. 1908. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108803: authorized by Matthew Clapham, entered by Matthew Clapham on 05.05.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Strophomenata
 Productida - Paucispiniferidae
"Productus latidorsatus" = Paucispinifera latidorsata
"Productus latidorsatus" = Paucispinifera latidorsata Girty 1908
variant
 Productida - Cyclacanthariidae
Cyclacantharia kingorum1
Cyclacantharia kingorum1 Cooper and Grant 1969
 Orthotetida - Orthotetidae
? Orthotetes "sp. a"
 Strophomenida - Chonetidae
"Chonetes" sp.
"Chonetes" sp. Fischer de Waldheim 1830
Rhynchonellata
 Athyridida - Athyrididae
Composita mexicana
Composita mexicana Hall 1857
var. guadalupensis
 Athyridida - Neoretziidae
Hustedia citeria2
Hustedia citeria2 Cooper and Grant 1976
 Rhynchonellida - Wellerellidae
"Pugnax bidentata" = Wellerella bidentata
"Pugnax bidentata" = Wellerella bidentata Girty 1908
 Rhynchonellida - Allorhynchidae
"Rhynchonella longaeva" = Fascicosta longaeva
"Rhynchonella longaeva" = Fascicosta longaeva Girty 1908
 Rhynchonellida - Petasmariidae
"Pugnax nitida" = Bryorhynchus nitidum
"Pugnax nitida" = Bryorhynchus nitidum Girty 1908
 Rhynchonellida - Pugnacidae
"Pugnax" osagensis
"Pugnax" osagensis Swallow 1908
 Orthida - Enteletidae
Enteletes "sp. c"
Enteletes "sp. c" Waldheim 1825
Cephalopoda
 Goniatitida - Vidrioceratidae
Peritrochia erebus n. gen.
Peritrochia erebus n. gen. Girty 1908 ammonite
 Nautilida - Tainoceratidae
"Foordiceras praecursor" = Pleuronautilus praecursor
"Foordiceras praecursor" = Pleuronautilus praecursor Girty 1908 nautiloid
Gastropoda
 Murchisoniina - Gosseletinidae
"Pleurotomaria strigillata" = Apachella pseudostrigillata, ""Pleurotomaria" arenaria" = Baylea arenaria
"Pleurotomaria strigillata" = Apachella pseudostrigillata Girty 1934 snail
""Pleurotomaria" arenaria" = Baylea arenaria Girty 1908 snail
ssp. monolifera
 Euomphalina - Euomphalidae
"Euomphalus sulcifer" = Discotropis sulcifer
"Euomphalus sulcifer" = Discotropis sulcifer Girty 1908 snail
Bivalvia
 Nuculanida - Nuculanidae
""Leda" sp." = Nuculana
""Leda" sp." = Nuculana Link 1807 pointed nut clam
 Pectinida - Limidae
"Plagiostoma" deltoideum
"Plagiostoma" deltoideum Girty 1908 file clam
Ostracoda
 Podocopida - Bairdiidae
Bairdia aff. plebeia
Bairdia aff. plebeia Reuss 1854 ostracod
Demospongiae
 Lithistida - Anthracosyconidae
? Anthracosycon sp., Anthracosycon ficus
? Anthracosycon sp. Girty 1908 demosponge
Anthracosycon ficus Girty 1908 demosponge
1Cooper and Grant 1975; 2Cooper and Grant 1976