†Colpospira (Acutospira) Kotaka 1959 (turret shell)
Gastropoda - Cerithioidea - Turritellidae
Alternative spelling: Acutospira
Parent taxon: Colpospira according to G. Rosenberg et al. 2006
See also Allmon 1996, Titova 1994 and Wagner et al. 2007
Sister taxa: Colpospira (Colpospira), Colpospira (Ctenocolpus), Colpospira (Platycolpus), Colpospira acinella, Colpospira conspicabilis, Colpospira platyspira, Colpospira tristira
Subtaxa: Colpospira (Acutospira) accisa Colpospira (Acutospira) atkinsoni Colpospira (Acutospira) smithiana Colpospira (Acutospira) tashiroi
Ecology: facultatively mobile semi-infaunal suspension feeder
Distribution:
• Eocene of Japan (3 collections)
Total: 3 collections each including a single occurrence