Short List of Transitional Fossils

Yahoo News has a story from LiveScience editor Robin Lloyd on the record of transitional fossils in the geological column. Most of it is taken from Donald Prothero's excellent book Evolution: What The Fossils Say and Why it Matters. For example:

• Tiktaalik, aka the fishibian or the fishapod, is a large scaled fish that shows a perfect transition between fins and feet, aquatic and land animals. It had fish-like scales, as well as fish-like fin rays and jaw and mouth elements, but it had a shortened skull roof and mobile neck to catch prey, an ear that could hear in both land and water, and a wrist joint that is like those seen in land animals.
• Last year, scientists announced the discovery of Gerobatrachus hottorni, aka the frogamander. Technically, it's a toothed amphibian, but it shows the common origins of frogs and salamanders, scientists say, with a wide skull and large ear drum (like frogs) and two fused ankle bones as seen in salamanders.

Read the whole thing. Better yet, pick up Prothero's book.