Phylum: Mollusca
Class: Gastropoda
Order: Murchisoniina
Family: Eotomariidae (Wenz, 1938)
Cincinnatian Genera: Clathrospira, Liospira

Geologic Range
Late Cambrian – Early Jurassic

Common Paleoecology
Eotomariidae is an extinct family of facultatively mobile epifaunal suspension feeders

Description of the Family

  • Turbiniform to Trochiform
  • Labral slit invariably present
  • Concave selenizone bordered by threads at mid-height of whorl

Published Descriptions

Treatise on Invertebrate Paleontology, Part I (1960):

  • Shell turbiniform to trochiform; labral slit invariably present, generating concave selenizone bordered by threads at approximately mid-height of whorl.