phylogerontic

phylogerontic
adj. [Gr. phyle, tribe; gerontos, old man]
In phylogeny, referring to the decadence of the old age stage; see paracme, typolysis.

Online Dictionary of Invertebrate Zoology. . 2005.

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Look at other dictionaries:

  • paracme — n. [Gr. parakme, decadence] The state of decline of a group of organisms after the highest stage of development (acme); see phylogerontic …   Dictionary of invertebrate zoology

  • typolysis — n. [Gr. typos, type; lysis, loosing] Phylogerontic; stage that precedes extinction of a type organism or group …   Dictionary of invertebrate zoology

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