Stromboidea

• Rimellidae
  • Cowlitzia
    • Cowlitzia problematica Hanna, 1927

Locus typicus: big bend in Rose Canyon, La Jolla quad, San Diego County, California, USA

Stratum typicum: "Rose Canyon shale member", La Jolla Group, middle Eocene

Cowlitzia problematica Hanna, 1927; Holotype; "Rose Canyon shale member", La Jolla Group, middle Eocene; big bend in Rose Canyon, La Jolla quad, San Diego County, California, USA; Coll. no. UCB 5062/31144, photo & copyright Ron Voskuil