ammonites
Chonetes pygmoideus Cooper 1957 (lamp shell)

Strophomenata - Productida - Chonetidae

Full reference: G. A. Cooper. 1957. Permian brachiopods from central Oregon. Smithsonian Miscellaneous Contributions 134(12):1-79

Belongs to Chonetes according to G. A. Cooper 1957

Sister taxa: Chonetes (Paeckelmannia), Chonetes baragwanathi, Chonetes chamishkjensis, Chonetes chaoi, Chonetes cherokeensis, Chonetes compressa, Chonetes concentricus, Chonetes deliciasensis, Chonetes flemingi, Chonetes foedus, Chonetes foshagi, Chonetes glabra, Chonetes mesoloba, Chonetes moelleri, Chonetes monosensis, Chonetes obtusa, Chonetes oklahomensis, Chonetes pinegensis, Chonetes posturalicus, Chonetes rarispina, Chonetes semiovalis, Chonetes sinuatus, Chonetes squama, Chonetes suavis, Chonetes timanica, Chonetes variolaris

Type specimen: USNM 125469. Its type locality is S30, 1.5 miles WNW of Sherman Ranch, Grindstone-Twelvemile Creek area, which is in a Kungurian marine limestone/sandstone in the Coyote Butte Formation of Oregon.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): shell 10.0 x 11.2