from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A genus of fossil plants or imperfect fungi classified according to their asexual organs.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A collection of organisms that is given formal recognition at the rank of genus with a taxonomic name, but which is known to be an artificial group rather than a natural one.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (biology) an artificial taxonomic category for organisms of which the true relationships are obscure
- n. an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms
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