Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of a characteristic of an
organism ,acquired from itsancestors ; not morphologically distinct from the same feature in an ancestor.
Etymologies
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Examples
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Cladistics is defined as nested hirarchy of traits, this nested hirarchy takes into account the fact, that traits are inheritable and constructs a line of ancestry from the earliest ancestor with the basic set of pleisiomorphic traits inherited to todays taxa via intermediate generations with added synapomorphic traits over time.
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Formicine males often bear a certain resemblance to workers - the antennae, for example, are geniculate - while Dolichoderine males are typically pleisiomorphic, looking much more poneromorph than formicine.
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