Hyolithid

What is Hyolithid?

Hyolithid definition and meaning on Dictionary terms:
noun
any invertebrate of the extinct genus Hyolithes, most common in the Cambrian Period, having a limy, univalve shell, and thought to be related to the pteropods.

adjective
belonging or pertaining to Hyolithes.

 

reference: https://www.dictionary.com/browse/hyolithid

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