from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having a polyparium with a row of cells on each side.

from The Century Dictionary and Cyclopedia

  • An epithet applied to certain fossil hydrozoans the polypary of which has a row of cellules on each side: opposed to monoprionidian. Such hydrozoans are chiefly confined to the Lower Silurian and Cambrian formations.


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