Meaning Of The Word Graptolite
What's the definition of Graptolite? Find Graptolite meanings, definitions and more at the Real Dictionary online.
Graptolite Meaning
| Graptolite Definition |
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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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