Related Overviews


'Pharetronida' can also refer to...


More Like This

Show all results sharing this subject:

  • Zoology and Animal Sciences


Show Summary Details

Quick Reference

(class Calcarea, subclass Calcinea)

An order of sponges whose body possesses a leucon structure. The skeleton is composed of a calcareous network, or of cemented spicules. The order first appeared in the Permian.

Subjects: Zoology and Animal Sciences.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.