An early mammal relative could have had enough time to spread across continents, as a new study suggests the separation occurred later than previously believed. Credit Jorge A. Gonzalez
Fossil provides evidence that mammals had more time to spread across continents - science news - paleonthology

The study of a 130-million-years fossil provided valuable insights into the spread of mammals on different continents. The fossil is evidence that the super-continental split likely occurred much more recently than scientists had previously thought. It suggests that the separation of the ancient landmass Pangea continued much longer, and it was completed about 15 million years later than current estimates. Thus, migrations and spread of wildlife could have occurred for a longer time. The fossil belongs to a new group of early mammal relatives that migrated from Asia to Europe, into North America and further onto major southern continents.

Read the full story: University of Chicago Medicine
Scientific publication: Nature