"The fossil record is incredibly sparse. There were probably billions of species that are now extinct or evolved, but we have fossils for only about 250,000 unique species.
You cannot use the fossil record for inferrring very much about abrupt changes, as just about everything in the fossil record is an abrupt change.
The fossil record is like a series of snapshots of different countries from a vacation trip through Europe, where there are less than one snapshot per country." DC via FB
No comments:
Post a Comment