: a genus (the type of the family Phylloceratidae) comprising smooth involute compressed ammonites with complex sutures that occur first in the Triassic and are believed to have been ancestral to most Jurassic and Cretaceous ammonites

Word History


New Latin Phyllocerat-, Phylloceras, from phyll- + -cerat-, -ceras -ceras

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Dictionary Entries Near Phylloceras

Cite this Entry

“Phylloceras.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2024.

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