Definitionn. (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms
Last update: June 28, 2015
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If the three principal organ-systems of the medusa, namely mouth, tentacles and umbrella, be considered in the light of phylogeny, it is evident that the manubrium bearing the mouth must be the oldest, as representing a common property of all the Coelentera, even of the gastrula embryo of all Enterozoa. [Please select]
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Consequently, any attempt to place _Ptychohyla_ in the over-all scheme of hylid phylogeny would be premature at this time. [Please select]
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, STATE PRINTER TOPEKA, KANSAS 1950 [Illustration: union label] 23-1019 Phylogeny of the Waxwings and Allied Birds by M. [Please select]
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The phylogeny suggested by these characters is supported by other lines of evidence, including external morphology, tadpoles, and breeding calls. [Please select]
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Ontogeny: the development of the individual as distinguished from that of the species: see phylogeny. [Please select]
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Phylogeny: the development of a genus, family, tribe or class: see ontogeny. [Please select]
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PHYLOGENY OF PTYCHOHYLA The preceding data on morphology, life histories, and behavior form the basis for the following interpretation of the phylogeny of _Ptychohyla_. [Please select]
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At the time he began his work biologists were largely busy in a region indicated by Darwin, and roughly mapped out by Haeckel—that of phylogeny. [Please select]
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