Definitions
Century Dictionary and Cyclopedia
- Having the spire depressed so that the whorls lie in the same plane, like those of the genus Planorbis; planorboid.
Examples
“This genus from its distinctly sinistral character is evidently allied to lAmacinay from which its planorbiform mode of growth distinctly separates it.p. i m i t a n 8.”
Internet Archive: Transactions of the American Philosophical Society
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These user-created lists contain the word ‘planorbiform’.
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Words of Dinosaurology
This quickly got bigger and weirder than originally intended, so now it's housing terms that relate to the study of dinosaurs and other prehistoric creatures. See also Dinosaurs, Pterosaurs, Ichthy...
zygopophyses, ziphodont, plesiomorphic, cleidoic, endothermy, ectothermy, viviparous, vertebrae, cervical, dorsal, sacral, caudal and 628 more...
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