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 terebellata, Auricula miliola, Auricula cytharella, Auricula miliaris, Auricula ovata, Auricula conovuliformis, Auricula hordeola, Auricula ringens, Auricula sulcata, Auricula bimarginata
Subtaxa: Ringicula (Ringiculopsis) hesperiae
Distribution:
• Cretaceous of Mexico (2 collections), United States (5: California)
Total: 7 collections each including a single occurrence