The Collaborative International Dictionary
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.
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.
Wiktionary
n. (context paleontology English) Any of numerous species of siliceous fossil sponges belonging to ''Ventriculites'' and allied genus.
Usage examples of "ventriculite".
Though the limestone formation was, on the evidence of such typical imbedded fossils as ventriculites, positively and unmistakably Comanchian and not a particle earlier, the free fragments in the hollow space included a surprising proportion from organisms hitherto considered as peculiar to far older periods - even rudimentary fishes, mollusks, and corals as remote as the Silunan or Ordovician.
Though the limestone formation was, on the evidence of such typical imbedded fossils as ventriculites, positively and unmistakably Comanchian and not a particle earlier, the free fragments in the hollow space included a surprising proportion from organisms hitherto considered as peculiar to far older periods--even rudimentary fishes, mollusks, and corals as remote as the Silunan or Ordovician.