AMNH B631, Rock Ford, Fremont County (Permian of the United States)

Where: Wyoming (42.6° N, 108.4° W: paleocoordinates 13.9° N, 30.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: marine; limestone

Preservation: replaced with silica

Reposited in the AMNH

• University of Wyoming Museum

Primary reference: N. D. Newell and D.W. Boyd. 1995. Pectinoid bivalves of the Permian-Triassic crisis. Bulletin of the American Museum of Natural History 227:1-95 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61938: authorized by Pete Wagner, entered by Pete Wagner on 08.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Neritoidea - Naticopsidae
Naticopsis (Naticopsis) judithae
 Bellerophontida - Euphemitidae
Euphemites sp., Euphemitopsis multinodosa, Warthia fissus
Euphemites sp. Warthin 1930 snail
Euphemitopsis multinodosa Yochelson 1960 snail
Warthia fissus Yochelson 1960 snail
 Bellerophontida - Bellerophontidae
Retispira modesta, Retispira fragilis, "Bellerophon (Pharkidonotus) altitropis n. sp." = Pharkidonotus altitropis
Retispira modesta Girty 1909 snail
Retispira fragilis Yochelson 1960 snail
"Bellerophon (Pharkidonotus) altitropis n. sp." = Pharkidonotus altitropis Kulas and Batten 1997 snail
 Euomphalina - Pseudophoridae
Sallya linsa
Sallya linsa Yochelson 1956 snail
 Euomphalina - Platyceratidae
"Platyceras (Platyceras) yochelsoni" = Platyceras yochelsoni
"Platyceras (Platyceras) yochelsoni" = Platyceras yochelsoni Kulas and Batten 1997 snail
 Cerithimorpha - Orthonemidae
Cibecuia sp., "Murchisonia (Murchisonia) cf. gouldii" = Cibecuia gouldii, "Goniasma ? geminocarinata" = Donaldospira geminocarinata
Cibecuia sp. Winters 1956 snail
"Murchisonia (Murchisonia) cf. gouldii" = Cibecuia gouldii Beede 1907 snail
"Goniasma ? geminocarinata" = Donaldospira geminocarinata Chronic 1952 snail
 Caenogastropoda - Orthonematidae
? Orthonema sp., "Stegocoelia (? Taosia) sp." = Taosia
? Orthonema sp. Meek and Worthen 1862 snail
"Stegocoelia (? Taosia) sp." = Taosia Girty 1939 snail
 Murchisoniina - Phymatopleuridae
Eirlysia cf. reticulata, ? Tapinotomaria sp.
Eirlysia cf. reticulata Batten 1958 snail
? Tapinotomaria sp. Batten 1956 snail
similar to Arizonella arisonensis
 Murchisoniina - Gosseletinidae
Apachella franciscana, Apachella boydi n. sp., Apachella capertoni, "Glabrocingulum (Glabrocingulum) alveozonum" = Glabrocingulum alveozonum, Baylea delawarensis
Apachella franciscana Chronic 1952 snail
Apachella boydi n. sp. Kulas and Batten 1997 snail
Apachella capertoni Beede 1907 snail
"Glabrocingulum (Glabrocingulum) alveozonum" = Glabrocingulum alveozonum Batten 1989 snail
Baylea delawarensis Girty 1909 snail