Utah fossil reveals global exodus of mammals' near relatives to major continents


A nearly 130-million-year-old fossilized skull found in Utah is an Earth-shattering discovery in one respect.

The small fossil is evidence that the super-continental split likely occurred more recently than scientists previously thought and that a group of reptile-like mammals that bridge the reptile and mammal transition experienced an unsuspected burst of evolution across several continents.

https://phys.org/news/2018-05-utah-f...xodus.html#jCp