Category:Ventriculite

Ven*tric"u*lite, n. Etym: [see ventriculus.] (paleon.)

Defn: any one of numerous species of siliceous fossil sponges Belonging to ventriculites and allied genera, characteristic of the Cretaceous period.

Note: many of them were shaped like vases, others like mushrooms. They belong to the hexactinellids, and are allied to the venus's Basket of modern seas.