Caenolestoidea

plural noun
Cae·no·les·toi·dea

Definition of Caenolestoidea 

: a superfamily of diprotodont marsupials comprising the opossum rats and extinct related forms

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First Known Use of Caenolestoidea

1910, in the meaning defined above

History and Etymology for Caenolestoidea

New Latin, from Caenolestes, type genus + -oidea

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The first known use of Caenolestoidea was in 1910

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