Graptolitoidea

noun Grap·to·li·toi·dea \ -lə̇ˈtȯidēə \

Definition of Graptolitoidea

: 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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Origin and Etymology of graptolitoidea

New Latin, from Graptolitus, genus of Graptolitoidea (alteration of Graptolithus, from Greek graptos painted, written + lithos stone) + -oidea