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type genus

noun, Biology
the genus that is formally held to be typical of the family or other higher group to which it belongs.
Origin of type genus
1830-40 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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type genus in Science
type genus
The taxonomic genus that is designated as representative of the family to which it belongs. The type genus is usually the first genus in the family to be named, or the genus that is considered most important. Families are named after type genera. For example, the dinosaur Tyrannosaurus is the type genus for the family Tyrannosauridae.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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