Siamogale melilutra

Siamogale melilutra is an extinct species of giant otter from the late Miocene from Yunnan province, China.
Ranking among the largest fossil otters, Siamogale represents a feeding ecomorphology with no living analog. Its giant size and high mandibular strength confer shell-crushing capability matched only by other extinct molluscivores, such as the bear-like marine stem-pinniped Kolponomos.

Taxonomy

The skull reveals a combination of otter-like and badger-like cranial and dental characteristics. The new species belongs to the Lutrinae because of its possession of a large infraorbital canal and ventral expansion of the mastoid process, among other traits. Siamogale melilutra was about 1.9 m in overall length and weighed at least 40 kg. The remains of the skull were found in China and were re-created with a CT scan which enabled the skeleton to be reconstructed without damaging it.