MNA Faught Ridge (Permian of the United States)

Where: Arizona (34.1° N, 110.1° W: paleocoordinates 8.1° N, 35.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Alpha Member (Kaibab Formation), Roadian (272.3 - 268.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Primary reference: R. L. Batten. 1964. Some Permian Gastropoda from eastern Arizona. American Museum Novitates 2165:1-16 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101778: authorized by Matthew Clapham, entered by Matthew Clapham on 03.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithimorpha - Orthonemidae
"Goniasma geminocarinata" = Donaldospira geminocarinata
"Goniasma geminocarinata" = Donaldospira geminocarinata Chronic 1952 snail
 Caenogastropoda - Orthonematidae
Orthonema sp. Meek and Worthen 1862 snail
 Euomphalina - Euomphalidae
"Straparollus (Euomphalus) kaibabensis" = Euomphalus kaibabensis
"Straparollus (Euomphalus) kaibabensis" = Euomphalus kaibabensis Chronic 1952 snail
 Murchisoniina - Gosseletinidae
"Glabrocingulum (Glabrocingulum) coronatum" = Glabrocingulum coronatum, Bradyospira johnsensis
"Glabrocingulum (Glabrocingulum) coronatum" = Glabrocingulum coronatum Chronic 1952 snail
Bradyospira johnsensis Batten 1964 snail