basal plates

From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 00:28, 14 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_multi-definitions.)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
basal plates: 1. (Echinodermata: Crinoidea) A cycle of 5 aboral calyx plates in primitive stalked crinoids. See also radial plates.

2. (NEMATA) The circular base of the cephalic framework, composed of an annular structure with posteriorly directed rim, the basal ring, and six radial elements.