Definition of stromatoporoid in English:

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stromatoporoid

Pronunciation: /ˌstrōməˈtäpəroid/

noun

An extinct, sessile, corallike marine organism of uncertain relationship that built up calcareous masses composed of laminae and pillars, occurring from the Cambrian to the Cretaceous.
Example sentences
  • The main victims were the major reef-building organisms: the stromatoporoid sponges, and rugose and tabulate corals.
  • The stromatoporoids had massive calcareous skeletons that are preserved as rather conspicuous fossils.
  • Other faunal elements include colonial and solitary corals, encrusting bryozoans, stromatoporoids, and rare brachiopods.

Origin

Late 19th century: from modern Latin Stromatopora (genus name), from stroma, stromat- 'layer, covering' + -pora (on the pattern of madrepora).

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