Monotremata (subclass)
Esquema
Jerarquía
Eukaryota (domain) > Animalia (kingdom) > Chordata (phylum) > Vertebrata (subphylum) > Mammalia (class)
Descripción
Refers to an egg-laying mammalian order four species classified in two suborders, extant members are the duck-billed platypus and the two species of echidna. Probably split from the lineage leading to other mammals in the Mesozoic.
URI original del concepto
Otros términos
- monotremes [en]
- monotreme [en]