Gastropoda - Opisthobranchia - Cylichnidae
Alternative spelling: Mirascapha
Full reference: R. B. Stewart. 1927. Gabb's California fossil type gastropods. Proceedings of the Academy of Natural Sciences, Philadelphia 78:287-447
Parent taxon: Scaphander according to R. L. Squires 1987
See also Sepkoski 2002, Squires 1984 and Turner 1938
Sister taxa: Bulla (Scaphander) elegans, Scaphander (Scaphander), Scaphander alaskensis, Scaphander brevicula, Scaphander impunctatus, Scaphander interruptus, Scaphander jacksonensis, Scaphander javanus, Scaphander jugularis, Scaphander nannus, Scaphander oligoturritus, Scaphander polysarcus, Scaphander radii, Scaphander rarus, Scaphander remondi, Scaphander stewarti, Scaphander washingtonensis
Subtaxa: Scaphander (Mirascapha) costatus
Ecology: epifaunal carnivore
Distribution:
• Eocene of the Russian Federation (1 collection), the United Kingdom (1), United States (40: California, Oregon, Washington)
• Paleocene to Eocene of the Russian Federation (1)
• Paleocene of Mexico (1), United States (13: California)
• Cretaceous of United States (6: California)
Total: 63 collections each including a single occurrence