Big Popo Agie Canyon, near Lander (Permian of the United States)

Where: Freemont County, Wyoming (42.7° N, 108.7° W: paleocoordinates 14.1° N, 30.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Meade Peak Member (Phosphoria Formation), Roadian (272.3 - 268.8 Ma)

• "Lower Embar" Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, phosphatic shale

Size class: macrofossils

Primary reference: E. B. Branson. 1916. The Lower Embar of Wyoming and Its Fauna. The Journal of Geology 24(7):639-664 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128880: authorized by Pete Wagner, entered by Pete Wagner on 17.06.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gnathostomata
  -
Chondrichthyes indet.
Chondrichthyes indet. Huxley 1880 cartilaginous fish
denticles
Chondrichthyes
 Ctenacanthiformes - Ctenacanthidae
"Cladodus occidentalis" = Glikmanius occidentalis, Ctenacanthus obscuracostatus n. sp., "Ctenacanthus browni n. sp." = Acondylacanthus browni
"Cladodus occidentalis" = Glikmanius occidentalis Leidy 1859 elasmobranch
Ctenacanthus obscuracostatus n. sp. Branson 1916 elasmobranch
"Ctenacanthus browni n. sp." = Acondylacanthus browni Branson 1916 elasmobranch
  -
Eunemacanthus keytei
Eunemacanthus keytei Branson 1916 elasmobranch
 Chimaeriformes -
Crassidonta stuckenbergi
Crassidonta stuckenbergi Branson 1916 chimaera
Only "Popo Agie" given
 Cochliodontiformes - Cochliodontidae
Cochliodontidae indet., "Deltodus mercurii" = Deltodus mercurei
Cochliodontidae indet. Owen 1867 chimaera
"Deltodus mercurii" = Deltodus mercurei Newberry 1876 chimaera
 Petalodontiformes - Janassidae
Janassa unguicula
Janassa unguicula Eastman 1903 chimaera
 Petalodontiformes - Petalodontidae
"Janassa unguiformis" = Peltodus unguiformis
"Janassa unguiformis" = Peltodus unguiformis St John and Worthen 1870 chimaera
Scaphopoda
 Dentaliida - Prodentaliidae
"Plagioglypta canna" = Prodentalium canna
"Plagioglypta canna" = Prodentalium canna White 1874 tusk shell
Gastropoda
 Bellerophontida - Bellerophontidae
"Bellerophon bellus" = Retispira textiliformis
"Bellerophon bellus" = Retispira textiliformis Gurley 1883 snail
Bivalvia
 Nuculanida - Polidevciidae
"Nucula perumbonata" = Phestia perumbonata, "Leda bellistriata" = Polidevcia bellistriata
"Nucula perumbonata" = Phestia perumbonata White 1880 clam
"Leda bellistriata" = Polidevcia bellistriata Stevens 1858 clam
 Nuculida - Nuculidae
? Nucula sp., "Nucula pulchella" = Nuculopsis poposiensis
? Nucula sp. Lamarck 1799 nut clam
"Nucula pulchella" = Nuculopsis poposiensis Branson 1930 nut clam
 Cardiida - Kalenteridae
"? Pleurophorus sp." = Permophorus
"? Pleurophorus sp." = Permophorus Chavan 1954 clam
Lingulata
 Lingulida - Discinidae
Orbiculoidea utahensis