单词 | Graptolitoidea |
释义 | Graptolitoideanoun Grap·to·li·toi·dea -lə̇ˈtȯidēə : a group of extinct animals of uncertain systematic rank and position formerly regarded as a division of Hydrozoa but now often placed in the Bryozoa or even associated with the pterobranchs in Hemichordata see graptolite |
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