The Collaborative International Dictionary
Turritelloid
Turritelloid \Tur`ri*tel"loid\, a. [Turritella + -oid.] (Zo["o]l.) Of, pertaining to, or resembling, the turritellas.
Wiktionary
turritelloid
a. (context zoology English) Of, pertaining to, or resembling, the turritellas.