Brisbane City Council   cc-by-3.0

Monotremata is a group of Mammalia. There are 6 species of Monotremata, in 4 genera and 3 families. This group has been around since the Aptian Age. Monotremata includes groups like Ornithorhynchidae, Kollikodontidae, and Echidnas.

EOL has data for 9 attributes, including:

Known occurrences, collected specimens and observations of Monotremata