Tag

Oligocene

All articles tagged with #oligocene

science7 months ago

Ancient 34-Million-Year-Old Snake Redefines Evolutionary History

Scientists discovered four nearly complete snake fossils from 38 million years ago in Wyoming, leading to the identification of a new species, Hibernophis breithaupti. The fossils provide valuable insights into snake evolution, social behavior, and size development, suggesting that ancient boas were small and that communal hibernation behaviors existed millions of years ago. The exceptional preservation was due to volcanic ash covering the snakes' burrows, offering a rare glimpse into prehistoric reptile life.

paleontology2 years ago

Weird toothed dolphin ancestors discovered in museum collection.

Scientists have discovered a 25 million-year-old predatory dolphin with long, sharp teeth jutting straight out from its snout in a museum collection in New Zealand. The extinct dolphin, named Nihohae matakoi, lived during the late Oligocene epoch and likely ate soft-bodied animals like squids and octopuses. The researchers believe the dolphin may have used its teeth to thrash its prey to death, similar to the behavior of juvenile sawfish. The use of these strange jutting teeth should be investigated further to understand why they evolved and why teeth like this keep appearing in different groups of animals.