infraclass

(redirected from infraclasses)
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Related to infraclasses: subclass Prototheria, Theria

in·fra·class

 (ĭn′frə-klăs′)
n.
A taxonomic category of related organisms ranking below a subclass and above an order or superorder.
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References in periodicals archive ?
Afterwards, the Fuzzy AHP, MADM method is applied to determine weights of inter-classes and infraclasses. Finally, Mahalanobis distance is used to rank the alternatives.
(25,53,86) According to the Darwinian theory of evolution, it is highly probable that PEG10 and PEG11/RTL1 were once positively selected and thus presumably contributed to the establishment of the subclasses and infraclasses of the mammals, the therians and the eutherians, respectively.
The other subclass of mammals Theria includes two infraclasses: Eutheria and Metatheria.