单词 | mid-cambrian |
释义 | > as lemmasmid-Cambrian mid-Cambrian adj. and n. ΚΠ 1916 Sci. Monthly Oct. 320 The discovery of the ventral surface and appendages in the Mid-Cambrian Neolenus serratus seems to place the trilobites definitely as a sub-class of the Crustacea. 1935 Bull. Mus. Compar. Zoöl. Harvard 76 221 It is..possible that the Hymenocaris of the Mid-Cambrian does not..belong to that genus. 1994 Beautiful Brit. Columbia Summer 21/2 Anomalocaris: 60cm marine predator; mid-Cambrian (515 million years ago); was the tyrannosaurus rex of its period. < as lemmas |
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