stromatoporoid
/ˌstrəʊməˈtɒpərɔɪd/noun
- an extinct sessile coral-like marine organism of uncertain relationship which built up calcareous masses composed of laminae and pillars, occurring from the Cambrian to the Cretaceous层孔虫类。
词源
late 19th cent.: from modern Latin Stromatopora (genus name), from stroma, stromat- 'layer, covering' + -pora （on the pattern of madrepora）.