Meaning Of The Word Graptolite

Real Dictionary

What's the definition of Graptolite? Find Graptolite meanings, definitions and more at the Real Dictionary online.

Graptolite Meaning

Graptolite Definition
Graptolite Definition

What's The Definition Of Graptolite?

graptolite in American English
noun: any colonial animal of the extinct class Graptolithina, most common in the Ordovician and Silurian Periods, thought to be related to the pterobranchs

graptolite in British English
noun: any extinct Palaeozoic colonial animal of the class Graptolithina, usually regarded as related to either the hemichordates or the coelenterates: a common fossil, used to determine the age of sedimentary rocks

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