Ventriculite \Ven*tric"u*lite\, n. [See {Ventriculus}.]
(Paleon.)
Any one of numerous species of siliceous fossil sponges
belonging to {Ventriculites} and allied genera,
characteristic of the Cretaceous period.
[1913 Webster]
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.
[1913 Webster]