Metatheria


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Related to Metatheria: Prototheria, Eutheria

Metatheria

see MARSUPIAL.
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Comparative genomics reveals that PLAC1 evolved after the divergence of placental mammals (Eutheria) from marsupials (Metatheria) as there are homologs throughout the former but no evidence in either of the other mammalian subclasses Metatheria and Prototheria (egg laying mammals) [3].
Otros datos concernientes al grupo mamiferos tribosfenicos los dan Trofimov y Szalay (35) quienes sinonimizan este termino con el de terios dentro de un concepto de grupo holofiletico que incluye las infraclases Tribotheria, Metatheria (marsupiales) y Euthe ria (placentarios).