单词 | phanerozonate |
释义 | phanerozonateadj. Zoology. Now rare. Denoting, relating to, or characteristic of a group of starfishes distinguished by conspicuous marginal plates and comprising the order Phanerozonia (now usually divided into two orders, Paxillosida and Valvatida). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Echinodermata > [adjective] > of, belonging to, or characteristic of Asteroidea > characteristic of order Phanerozonia phanerozonate1889 phanerozone1962 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. 1890 Amer. Naturalist 24 161 The Phanerozonia are regarded as the more primitive, especially as the young of a cryptozonate asteroid is phanerozonate. 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. I. u36/2 Some Cryptozonia have a phanerozonate stage in ontogeny. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < adj.1889 |
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