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apomorphy
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apomorphy — a state derived by evolution from a primitive state (plesiomorphy); applied to a character, not a taxon. It relates to the compared character state and the hierarchical level considered, i.e. the character is apomorphic in relation to one state… … Dictionary of ichthyology
apomorphy — n. [Gr. apo, away; morphe, form] A term pertaining to derived characters, normally used in cladistic taxonomy … Dictionary of invertebrate zoology
apomorphy — Derived character or character state. See also autoapomorphy, homology, plesiomorphy, symplesiomorphy, synapomorphy … Expanded glossary of Cycad terms
apomorphy — … Useful english dictionary
Cladistics — For the scientific journal, see Cladistics (journal). Part of a series on Evolutionary Biology … Wikipedia
Clade — For other uses, see Clade (disambiguation). Cladogram (family tree) of a biological group. The red and blue boxes represent clades (i.e., complete branches). The green box is not a clade, but rather represents an evolutionary grade, an incomplete … Wikipedia
Synapomorphy — In evolutionary biology, a synapomorphy is a derived character state shared by two or more terminal groups (taxa included in a cladistic analysis as further indivisible units) and inherited from their most recent common ancestor. Derived in this… … Wikipedia
Paraphyly — A cladogram showing a hypothetical descent from an ancestor species of the clade vertebrata.[1] Note that cladograms do not necessarily correspond to taxonomic classifications. In this one, Sauropsida are a paraphyletic group. It can be made… … Wikipedia
PhyloCode — The International Code of Phylogenetic Nomenclature , known for short as the PhyloCode , is a developing draft for a formal set of rules governing phylogenetic nomenclature. Its current version is specifically designed to regulate the naming of… … Wikipedia
Ornithurae — Ornithurans Temporal range: Early Cretaceous–Recent, 136–0 Ma … Wikipedia
