cladogenesis

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cladogenesis

(klăd′ə-jĕn′ĭ-sĭs)
n.
An evolutionary process that involves the splitting off or branching of new taxa from an ancestral form.

clad′o·ge·net′ic (-jə-nĕt′ĭk) adj.
clad′o·ge·net′i·cal·ly adv.

cladogenesis

the branching of a phylogenetic tree to produce new forms and new species which evolve in their own way.
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References in periodicals archive ?
The reconstruction based on Fossil 1 indicates that most of the cladogenetic events of the suprageneric lineages were concentrated in a narrow interval between 25 and 50 Ma.
Of the 68 cladogenetic events, 40 speciation events exhibit a biogeographic shift indicating speciation by dispersal (= 37.
In recent years, many cladograms have been published for the species of families and genera of Neotropical animals usually with no discussions of the nature of the vicariance events which caused the numerous cladogenetic events underlying the speciation patterns depicted.
The fossil record, in combination with the phylogeny, yields minimum divergence times for cladogenetic events, gives some insights into the temporal and geographic origin of species, and presents us with information about the numbers of extinct species and their characters.
These processes all reduce the adaptative possibilities that support cladogenetic production (the <<hidden guillotine>>), in stark contrast to what happens in the relatively benign tropics.