What is "kilianella"

Kilianella is a genus of the ammonite family Neocomitidae. The shell of Kilianella is evolute with a slightly grooved venter and covered by strong, gently flexious, single or bifucating ribs.

Kilianella has a widespread distribution on the Lower Cretaceous and has been found in the Upper Berriasian to Upper Valanginian of the Western U.S., Mexico, China, southern Asia, and Europe.