Coyote Butte (Permian to of the United States)

Where: Crook County County, Oregon (44.1° N, 120.6° W: paleocoordinates 17.9° N, 38.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Coyote Butte Limestone Formation, Wolfcampian to Wolfcampian (298.9 - 273.0 Ma)

• poorly exposed, and downgraded from formation status due to lack of mapability.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; limestone

• ..chaotically intermixed limestone blocks within cherts and volcaniclastics the limestones are interpreted as slide and slump blocks that became detached from a carbonate shelf and incorporated into deeper water basinal clastrics in a forearc basin

Preservation: replaced with silica

Reposited in the USNM

Collection methods: chemical,

Primary reference: R. A. Hanger, R.D. Hoare, and E.E. Strong. 2000. Permian Polyplacophora, Rostroconchia, and problematica from Oregon. Journal of Paleontology 74(2):192-198 [D. Erwin/D. Erwin/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7141: authorized by Doug Erwin, entered by Doug Erwin on 02.05.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Geological Studies, Brigham Young University 47(3):125-132 Lower Permian Sponges from the Coyote Butte Formation, Grindstone Terrane, Crook County, Oregon. J. Keith Rigby, Rex A. Hanger, and Ellen E. Strong. has the sponges.
Gastropoda
 Sorbeoconcha - Acteoninidae
Acteonina permiana n. sp. Hanger and Strong 1998 snail
Rostroconchia
 Conocardiida - Arceodomidae
Arceodomus sphairikos n. sp. Hanger et al. 2000
Polyplacophora
 Multiplacophora - Strobilepidae
Diadeloplax apiculatus n. sp. Hanger et al. 2000 chiton
 Neoloricata - Acutichitonidae
Arcochiton soccus n. sp. Hanger et al. 2000 chiton
 Neoloricata - Leptochitonidae
Pterochiton sp. Carpenter 1882 chiton
 Neoloricata -
Homeochiton triangularis n. gen. n. sp.
Homeochiton triangularis n. gen. n. sp. chiton
 Neoloricata - Gryphochitonidae
Chauliochiton ? sp. Hoare and Smith 1984 chiton
Gryphochiton planoplata Hanger et al. 2000 chiton
Trilobita
 Proetida - Phillipsiidae
Cummingella (Cummingella) sp. Reed 1942 trilobite