ammonites
Euconospira varizona Batten 1958 (snail)

Gastropoda - Murchisoniina - Gosseletinidae

Full reference: R. L. Batten. 1958. Permian Gastropoda of the southwestern United States. 2. Pleurotomariacea: Portlockiellidae, Phymatopleuridae, and Eotomariidae. Bulletin of the American Museum of Natural History 114(2):153-246

Belongs to Euconospira according to P. J. Wagner 2011

Sister taxa: Euconospira conica, Euconospira conula, Euconospira cryptolirata, Euconospira desereti, Euconospira disjuncta, Euconospira elegantula, Euconospira equisita, Euconospira hermosana, Euconospira missouriensis, Euconospira neptuni, Euconospira nipponica, Euconospira nodosa, Euconospira obsoleta, Euconospira pinegensis, Euconospira pulchra, Euconospira spiroperforata, Euconospira sturgeoni, Euconospira trochiformis, Euconospira turbiniformis, Euconospira waterlooensis

Type specimen: Its type locality is USNM701g, Wolf Camp Hills, Glass Mountains, which is in an Asselian reef, buildup or bioherm limestone in the Neal Ranch Formation of Texas

Ecology: facultatively mobile epifaunal suspension feeder

Average measurements (in mm): shell diameter 13.4