phanerozonate, a. Zool.
(fænərəʊˈzəʊneɪt)
[f. mod.L. order name Phanerozonia (W. P. Sladen in Thomson & Murray Rep. Sci. Results Voy. H.M.S. Challenger: Zool. (1889) XXX. p. xxvi), f. phanero- + Gr. ζώνη girdle + -ia2: see -ate2.]
Characteristic of or comprising certain starfishes grouped in the order Phanerozonia, distinguished by conspicuous marginal plates.
| 1889 W. P. Sladen in Rep. Sci. Results Voy. H.M.S. Challenger: Zool. XXX. p. xxvi, I consider that the Phanerozonate group is older than the Cryptozonate. 1906 E. W. MacBride in Cambr. Nat. Hist. I. xvi. 454 In a very large number of Asteroidea the supero- and infero⁓marginal ossicles are represented by squarish plates even when the rest of the skeleton is reticulate; this is the so-called ‘phanerozonate’ structure. 1923 Nature 13 Jan. 47/1 What these specialists are impressed by is the ‘phanerozonate’ character of the Astropectinidae, that is, the edging of the arms with a series of broad plates termed the ‘marginals’. 1966 J. W. Durham et al. in R. C. Moore Treat. Invertebr. Paleont. U. I. u36/2 Some Cryptozonia have a phanerozonate stage in ontogeny. |