Gastropoda - Heterostropha - Ringiculidae
Parent taxon: Ringicula according to Deshayes 1838
See also Squires 1999
Sister taxa: Ringicula (Ringiculella), Ringicula (Ringiculina), Ringicula (Ringiculina) clarki, Ringicula (Ringiculocosta), Ringicula (Ringiculopsis), Ringicula acuta, Ringicula arctatoides, Ringicula blaszyki, Ringicula buccinea, Ringicula castigata, Ringicula celata, Ringicula clarki, Ringicula culbertsoni, Ringicula dalli, Ringicula discrepans, Ringicula dominicana, Ringicula minor, Ringicula mississippiensis, Ringicula nuda, Ringicula punjabensis, Ringicula semperi, Ringicula striata, Ringicula trapaquara, Ringicula trapequara, Ringicula turgida, Ringicula varia, Ringicula ventricosa, Auricula bimarginata, Auricula sulcata, Auricula ovata, Auricula hordeola, Auricula conovuliformis, Auricula ringens, Auricula cytharella, Auricula miliola, Auricula acicula, Auricula miliaris, Auricula terebellata
Subtaxa: Ringicula (Ringicula) cockburnensins Ringicula (Ringicula) pinguis Ringicula (Ringicula) pulchella
Ecology: epifaunal carnivore
Distribution:
• Quaternary of Japan (1 collection)
• Miocene of Indonesia (1)
• Eocene of Antarctica (1), United States (1: California)
• Paleocene of Belgium (1), United States (12: California)
• Tertiary of United States (1: California)
• Cretaceous of United States (54: Alabama, California, Maryland, Mississippi, Tennessee, Texas)
Total: 72 collections each including a single occurrence