Ancient otter of unusual size unearthed in China | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.



Science Ticker

Your daily roundup of research news

Science News Staff
Science Ticker

Ancient otter of unusual size unearthed in China

illustration of giant otters

OUT OF THE SWAMP  Six million years ago, giant otters (illustrated above eating a clam and walking) may have lived in the lush swamps of what is now China, and coexisted with tapir (one illustrated in background).

Sponsor Message

Fossils of a giant otter have emerged from the depths of an open-pit mine in China.

The crushed cranium, jaw bone and partial skeletons of at least three animals belong to a now-extinct species of otter that lived some 6.2 million years ago, scientists report January 23 in the Journal of Systematic Palaeontology.

At roughly 50 kilograms in weight, the otter would have outclassed today’s giant otter, a river-dwelling South American mammal weighing in at around 34 kilograms. Scientists named the new species Siamogale melilutra, a nod to its unusual mix of badger and otter features. Melilutra is a mash-up of the Latin words for both creatures.

Badgers and otters both belong to a group of carnivorous animals called Mustelidae, but scientists have had trouble figuring out where to place extinct members in the mammalian family tree. (European badgers and modern otters share similar-looking teeth and skulls.) Still, Siamogale melilutra, however badgerlike, is indeed an otter, researchers concluded after CT scanning, reconstructing and analyzing the fossil skull. 

Based on plant and animal fossils found near the collection site, scientists believe that the ancient otter probably lived in the shallow lake of a warm and humid swamp, lush with broad-leaved evergreens and grasses.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content