Ervay Carbonate Rock Member, Park City Formation of Wyoming (Permian of the United States)

Where: Wyoming (43.0° N, 106.8° W: paleocoordinates 13.1° N, 30.2° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Ervay Member (Park City Formation), Lopingian (259.9 - 252.2 Ma)

• Davydov et al. 2017 dated an ash bed in the upper Meade Peak Member at 260.57 ± 0.07 / 0.14 / 0.31 Ma, indicating that the Meade Peak is as young as uppermost Capitanian.

• member-level stratigraphic resolution

Environment/lithology: marine; lime mudstone and calcareous grainstone

• Alternating Lime Mudstone and Fine Limey """"Sandstone"""" (Grainstone)

Size classes: macrofossils, mesofossils

Primary reference: E. L. Yochelson and D. H. Van Sickle. 1968. Biostratigraphy of the Phosphoria, Park City, and Shedhorn Formations; Geology of Permian Rocks in the Western Phosphate Field. United States Geological Survey Professional Paper 313(D):572-660 [A. Miller/C. Ferguson/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 11223: authorized by Arnold Miller, entered by Chad Ferguson on 26.07.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Scyphozoa
 Conulariida -
Conulariida indet.
Conulariida indet. Miller and Gurley 1896 jellyfish
Scaphopoda
 Dentaliida - Prodentaliidae
"Plagioglypta canna" = Prodentalium canna
"Plagioglypta canna" = Prodentalium canna White 1874 tusk shell
Cephalopoda
 Nautilida - Grypoceratidae
? Stearoceras sp.
? Stearoceras sp. Hyatt 1893
Rostroconchia
 Conocardiida - Conocardiidae
Conocardium sp.
Conocardium sp. Bronn 1835
Gastropoda
 Bellerophontida - Euphemitidae
Euphemites sp., "Euphemitopsis subpapillosus" = Euphemitopsis subpapillosa
Euphemites sp. Warthin 1930 snail
"Euphemitopsis subpapillosus" = Euphemitopsis subpapillosa White 1876 snail
Bivalvia
 Nuculida - Nuculidae
Nuculopsis pulchra, Nuculopsis sp.
Nuculopsis sp. Girty 1912 nut clam
 Trigoniida - Schizodidae
Schizodus sp., Schizodus canalis
Schizodus sp. King 1844 clam
Schizodus canalis Branson 1930 clam
 Cardiida - Kalenteridae
Celtoides sp.
Celtoides sp. Newell 1957 clam
 Cardiidia - Sanguinolitidae
Wilkingia sp.
Wilkingia sp. Wilson 1959 clam
 Pectinida - Streblochondriidae
"Streblochondria guadalupensis" = Aviculopecten guadalupensis
"Streblochondria guadalupensis" = Aviculopecten guadalupensis Girty 1909 scallop
 Pectinida - Heteropectinidae
"Cassianella sexradiata" = Cassianoides sexcostatus, "Aviculopecten cf. vanvleeti" = Heteropecten vanvleeti
"Cassianella sexradiata" = Cassianoides sexcostatus Stuckenberg 1898 scallop
"Aviculopecten cf. vanvleeti" = Heteropecten vanvleeti Beede 1902 scallop
 Pectinida - Aviculopectinidae
Aviculopecten sp.
Aviculopecten sp. M'Coy 1851 scallop
 Pectinida - Deltopectinidae
"Cyrtorostra varicostata" = Cyrtorostra varicostata, "Aviculopecten cf. alternatus" = Cyrtorostra varicostata
"Cyrtorostra varicostata" = Cyrtorostra varicostata Branson 1930 scallop
"Aviculopecten cf. alternatus" = Cyrtorostra varicostata Branson 1930 scallop
 Pectinida - Pseudomonotidae
Pseudomonotis sp.
Pseudomonotis sp. von Beyrich 1862 scallop
 Pectinida - Pectinoidae
? Camptonectes sp.
? Camptonectes sp. Meek 1864 scallop
 Myalinida - Myalinidae
Myalina (Myalina) sinuata
Myalina (Myalina) sinuata Branson 1930 clam
Rhynchonellata
 Athyridida - Athyrididae
Composita sp., Composita subtilita, Composita mira
Composita sp. Brown 1849
Composita mira Girty 1899
 Athyridida - Neoretziidae
Hustedia phosphoriensis
 Rhynchonellida - Wellerellidae
Wellerella cf. osagensis
Wellerella cf. osagensis Shumard and Swallow 1858
 Spiriferinida - Pennospiriferinidae
"Spiriferina pulchra" = Xestotrema pulchrum
"Spiriferina pulchra" = Xestotrema pulchrum Meek 1860
 Spiriferinida - Spiriferinidae
Spiriferina cf. kentuckensis, Spiriferina sp.
Spiriferina sp. d'Orbigny 1847
Strophomenata
 Productida - Echinoconchidae
Bathymyonia sp., Bathymyonia nevadensis
 Productida - Productidae
"Muirwoodia multistriatus" = Yakovlevia
"Muirwoodia multistriatus" = Yakovlevia
 Productida - Productellidae
? Echinauris sp.
? Echinauris sp. Muir-Wood and Cooper 1960
 Productida - Paucispiniferidae
? Liosotella sp.
? Liosotella sp. Cooper 1953
 Productida - Aulostegidae
Sphenosteges sp., Sphenosteges hispidus
Sphenosteges sp. Muir-Wood and Cooper 1960
 Orthotetida - Derbyiidae
Derbyia magna, Derbyia sp.
Derbyia sp. Waagen 1884
 Strophomenida - Chonetidae
Chonetes sp.
Chonetes sp. Fischer de Waldheim 1830
 Strophomenida - Rugosochonetidae
"Chonetes cf. ostiolatus" = Komiella ostiolata
"Chonetes cf. ostiolatus" = Komiella ostiolata Girty 1910
Stenolaemata
 Fenestrata -
Fenestrata indet.
Fenestrata indet. Elias and Condra 1957
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
entered as "Terpostomata"
Gnathostomata
  -
Osteichthyes indet.