Gastropoda - Heterostropha - Ringiculidae
Alternative spelling: Ringiculopsis
Parent taxon: Ringicula according to R. L. Squires and L. R. Saul 2001
See also Sepkoski 2002
Sister taxa: Ringicula (Ringicula), Ringicula (Ringiculella), Ringicula (Ringiculina), Ringicula (Ringiculina) clarki, Ringicula (Ringiculocosta), Ringicula acuta, Ringicula arctatoides, Ringicula blaszyki, Ringicula buccinea, Ringicula castigata, Ringicula celata, Ringicula clarki, Ringicula culbertsoni, Ringicula dalli, Ringicula discrepans, Ringicula dominicana, Ringicula knolli, Ringicula minor, Ringicula mississippiensis, Ringicula nuda, Ringicula punjabensis, Ringicula semperi, Ringicula striata, Ringicula trapaquara, Ringicula trapequara, Ringicula turgida, Ringicula varia, Ringicula ventricosa, Ringicula yochelsoni, Auricula acicula, Auricula ovata, Auricula sulcata, Auricula conovuliformis, Auricula miliaris, Auricula bimarginata, Auricula terebellata, Auricula hordeola, Auricula cytharella, Auricula miliola, Auricula ringens
Subtaxa: Ringicula (Ringiculopsis) hesperiae
Distribution:
• Cretaceous of Mexico (2 collections), United States (5: California)
Total: 7 collections each including a single occurrence