What is "guhsania"

Guhsania is an extinct ammonoid cephalopod genus that lived during the early Middle Jurassic, (early Bajocian), from about 171.5 to 173.5 Ma.

Guhsania belongs to the Sonniniidae, a member of the hildoceratacean superfamily. The shell (conch): essentially involute and ribbed throughout, umbilical edge sharp, outer whorl oxyconic.