Metatheria (Marsupial Mammals) is an infraclass of mammals. There are 700 species of Marsupial Mammals, in 268 genera and 60 families. This infraclass has been around since the aptian age. It includes groups like Glasbiidae, Pucadelphydae, and Protodidelphidae. They are omnivores. Reproduction is viviparous.
EOL has data for 14 attributes, including: