Gastropoda - Neotaenioglossa - Calyptraeidae
Alternative spelling: Crypta (Spirocrypta)
Full reference: W. M. Gabb. 1864. Description of the Cretaceous fossils. Geological Survey of California Palaeontology 1:57-217
Parent taxon: Crepidula according to J. E. Schoellhamer et al. 1981
See also Kohn and Arua 1999, Moore 1976, Saul and Squires 2008, Sepkoski 2002 and Stewart 1927
Sister taxa: Calyptraea (Crepidula) protea, Crepidula (Crepidula), Crepidula (Garnotia), Crepidula (Ianacus), Crepidula (Janacus), Crepidula adunca, Crepidula aeola, Crepidula aplysioides, Crepidula bractea, Crepidula convexa, Crepidula cymbaeformis, Crepidula depressa, Crepidula deprima, Crepidula diminutiva, Crepidula dumosa, Crepidula excavata, Crepidula falconeri, Crepidula fornicata, Crepidula gatunensis, Crepidula gibbosa, Crepidula incurva, Crepidula iniquita, Crepidula lessonii, Crepidula lirata, Crepidula maculosa, Crepidula naticarum, Crepidula navicula, Crepidula nivea, Crepidula norrisianum, Crepidula nummaria, Crepidula onyx, Crepidula pabloensis, Crepidula perforans, Crepidula plana, Crepidula praerupta, Crepidula princeps, Crepidula rostralis, Crepidula rugosa, Crepidula rugosa, Crepidula saugusensis, Crepidula sookensis, Crepidula tainohataensis, Crepidula ungana, Crepidula unguiformis
Subtaxa: Crepidula (Spirocrypta) pileum
Type: Crypta pileum
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Eocene of United States (3: California collections)
Total: 3 collections each including a single occurrence