spiniferite

Definitions

n. A certain minute organism beset with spines, occurring in the Chalk flints. Their real nature is unascertained, but they have been supposed to be the gemmules of sponges.

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Words of Dinosaurology

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zygopophyses, ziphodont, plesiomorphic, cleidoic, endothermy, ectothermy, viviparous, vertebrae, cervical, dorsal, sacral, caudal and 628 more...

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chained_bear "1872 H. A. NICHOLSON Palæont. 69 In some sections of flint are found minute ‘spherical bodies, covered with radiating and multicuspid spines’, which have been termed Spiniferites or Xanthidia, and are probably the ‘gemmules’ of sponges." (OED) Sep 15, 2008

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