Elephant Canyon Formation, Moab, Utah, Unit 12 (Permian of the United States)

Where: Grand County, Utah (38.5° N, 109.7° W: paleocoordinates 5.3° N, 35.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Elephant Canyon Formation, Asselian (298.9 - 295.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: peritidal; burrowed, shelly/skeletal, argillaceous, silty wackestone

• Interpreted as tidal flat
• Limestone, silty to argillaceous biomicrite: medium silt-size to very fine sand-size particles; extensively burrowed; locally fossiliferous

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: surface (float), surface (in situ),

Primary reference: F. M. Terrell. 1972. Lateral facies and paleoecology of Permian Elephant Canyon Formation, Grand County, Utah. Brigham Young University Geology Studies 19(2):3-44 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 39918: authorized by David Bottjer, entered by Matthew Clapham on 12.06.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Wilkingia burrows present
 Myalinida - Myalinidae
Myalina "sp. A" de Koninck 1842 clam
 Cardiidia - Sanguinolitidae
Wilkingia "sp. B" Wilson 1959 clam
Small sp.
Gastropoda indet. Cuvier 1797 snail
 Euomphalina - Craspedostomatidae
Natiria sp. de Koninck 1881 snail
 Bellerophontida -
Bellerophontoidea sp. M'Coy 1851 snail
 Bellerophontida - Bellerophontidae
Pharkidonotus sp. Girty 1912 snail
 Murchisoniina - Gosseletinidae
Euconospira sp. Ulrich and Scofield 1897 snail
 Murchisoniina - Murchisoniidae
Helicospira sp. Girty 1915 snail