Perisphinctes

noun

Peri·​sphinc·​tes

ˌperəˈsfiŋ(k)(ˌ)tēz

: a genus (the type of the family Perisphinctidae) comprising discoidal ammonites having bifurcating ribs not interrupted on the ventral side and being characteristic of the Upper Jurassic

perisphinctoid

¦⸗⸗¦sfiŋ(k)ˌtȯid

adjective

Word History

Etymology

New Latin, from peri- + -sphinctes (from Greek sphinktos tightly bound, from sphingein to bind fast)

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