Puijila is a genus of extinct pinniped that lived about 21 to 24 million years ago. Approximately a meter (3'4'') in length, the animal possessed only minimal physical adaptations for swimming. Unlike modern pinnipeds, it did not have flippers and its overall form was otter-like, albeit more specialized; its skull and teeth are the features that most clearly indicate that it is a seal. It is considered to be the most primitive member of the seal family yet found. It is named in honour of the English naturalist Charles Darwin. The one known specimen is a nearly complete fossilized skeleton. It is being housed at the Canadian Museum of Nature in Ottawa, Ontario.