The Collaborative International Dictionary
marsupialian
marsupialian \mar*su`pi*a"li*an\, marsupian \mar*su"pi*an\, n. (Zo["o]l.) One of the Marsupialia.
Wiktionary
marsupialian
n. (context archaic zoology English) Any of the Marsupialia; a marsupial.
Usage examples of "marsupialian".
He was the size of a collie, and he bore in a marsupialian pouch vegetables and fruit and nuts.