What is "jovellania"

Jovellania is an extinct prehistoric nautiloid genus from the order Oncocerida known from the Lower Devonian of Europe (France, Germany). Nautiloids form a broad group of shelled cephalopods that were once diverse and numerous but are now represented by only a handful of species in two genera.

Jovellania was named by Bayle (1879) and is type genus for the Jovellaniidae, a family assigned to the Oncocerida by Flower (1950)