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Ringicula
Taxonomy
Ringicula was named by Deshayes (1838) [Sepkoski's age data: K Albi-u R Sepkoski's reference number: 792]. It is extant.
It was assigned to Gastropoda by Mansfield (1925); to Cephalaspida by Sepkoski (2002); and to Ringiculidae by Durham (1944), Olsson and Harbison (1953), DuBar (1958), MacNeil (1960), Sohl (1964), Ward and Blackwelder (1987), Squires (1999), Squires and Saul (2001), Harzhauser and Mandic (2001), Todd (2001), Wienrich and Janssen (2007), Gründel and Nützel (2012).
It was assigned to Gastropoda by Mansfield (1925); to Cephalaspida by Sepkoski (2002); and to Ringiculidae by Durham (1944), Olsson and Harbison (1953), DuBar (1958), MacNeil (1960), Sohl (1964), Ward and Blackwelder (1987), Squires (1999), Squires and Saul (2001), Harzhauser and Mandic (2001), Todd (2001), Wienrich and Janssen (2007), Gründel and Nützel (2012).
Species
Auricula acicula, Auricula bimarginata, Auricula conovuliformis, Auricula cytharella, Auricula hordeola, Auricula miliaris, Auricula miliola, Auricula ovata, Auricula ringens, Auricula sulcata, Auricula terebellata, R. (Ringicula), R. (Ringiculella), R. (Ringiculina), R. (Ringiculina) clarki, R. (Ringiculocosta), R. (Ringiculopsis), R. acuta, R. arctatoides, R. blaszyki, R. buccinea, R. castigata, R. celata, R. clarki, R. culbertsoni, R. dalli, R. discrepans, R. dominicana, R. knolli, R. minor (syn. R. (Ringiculella) tournoueri, R. (Ringiculella) auriculata, R. paulucciae, R. tournoueri, R. (Ringiculella) paulucciae), R. mississippiensis, R. nuda, R. punjabensis, R. semperi, R. striata, R. trapaquara, R. trapequara, R. turgida, R. varia, R. ventricosa, R. yochelsoni
Species lacking formal opinion data