List of megafauna discovered in modern times

The following is a list of megafauna discovered by science since the beginning of the 19th century (with their respective date of discovery).

Some of these may have been known to native peoples or reported anecdotally but had not been generally acknowledged as confirmed by the scientific world, until conclusive evidence was obtained for formal studies.

In other cases, certain animals were initially considered hoaxes – similar to the initial reception of mounted specimens of the duck-billed platypus (Ornithorhynchus anatinus) [1] in late 18th-century Europe.

The most common thresholds to be a megafauna are weighing over 46 kilograms (100 lb)[2][3][4] (i.e., having a mass comparable to or larger than a human) or weighing over a tonne, 1,000 kilograms (2,205 lb)[2][5][6] (i.e., having a mass comparable to or larger than an ox).

This list includes some of the more notable examples discovered in modern times.