Steropodon was a prehistoric species of monotreme, or egg-laying mammal, that lived during the middle Albian stage, in the Lower Cretaceous period. It is the second-earliest known relative of the platypus.

In The Land Before Time


Steropodon (the tan furred, big-eared creature towards the right of the nest) watching Littlefoot's birth.

A very unusual looking Steropodon appears during the birth of Littlefoot in The Land Before Time. It resembles a primitive platypus to a degree, though it sports a pair of long ears, unlike the real animal.

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