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单词 Cornulitid
释义

Cornulitid

英语百科

Cornulitida

Cornulitids on a bryozoan; Bellevue Member, Grant Lake Formation, northern Kentucky.
Cornulites cellulosus from Wenlock of Saaremaa, Estonia

Cornulitida is an extinct order of encrusting animals from the Tentaculita class, which were common around the globe in the Ordovician to Devonian oceans, and survived until the Carboniferous.

The organisms had shells, and were subject to predation by boring and other means from the Ordovician onwards. Many survived attacks by predators. Several cornulitids were endobiotic symbionts in the stromatoporoids and tabulates.

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