1.   It is thought that the very first placental mammals were tiny insectivores, but no fossil evidence of them remains.

2.   Several specialists questioned whether there is enough fossil evidence yet to support a claim for a new genus.

3.   The fossil evidence is confirmed by the record of the genes.

4.   A. Probably, based on structural features and fossil evidence, though some scientists studying DNA evidence suspect otherwise.

5.   But according to Alan Feduccia, a University of North Carolina ornithologist, the fossil evidence tells a different story.

6.   But how could seed dispersal expand their ranges as fast as the fossil evidence suggests?

7.   But the fossil evidence gives little hint how quickly it melted or its cause.

8.   But this, he said, would require more fossil evidence comparing early snakes with their contemporary mosasauroids.

9.   Critics of the blitzkrieg hypothesis point to a paucity of fossil evidence showing that hunters killed big game.

10.   For that matter, fossil evidence suggests that Neanderthals had very sizable brains, and they did not even last long enough to invent standardized tests.