Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of numerous species of siliceous fossil sponges belonging to Ventriculites and allied genera.

from the GNU version of the Collaborative International Dictionary of English

  • n. Any one of numerous species of siliceous fossil sponges belonging to Ventriculites and allied genera, characteristic of the Cretaceous period.

from The Century Dictionary and Cyclopedia

  • n. A fossil sponge of the family Ventriculitidæ a so-called “petrified mushroom.” They are of various shapes—fungiform, cup-like, tubular, or funnel-shaped—and abound in the Cretaceous.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

See ventriculus.

Examples

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