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Also known as Zaglossus hacketti, Hackett's giant echidna

Murrayglossus is an extinct genus of echidna from the Pleistocene of Western Australia. It contains a single species, Murrayglossus hacketti, also called '''Hackett's giant echidna'. Though only from a few bones, researchers suggest that Murrayglossus was the largest monotreme to have ever lived, measuring around long and weighing around . Historically treated as a species of long-beaked echidnas, it was separated into its own genus Murrayglossus in 2022. The generic name combines the last name of paleontologist Peter Murray and glossus'', the Greek word for "tongue".