Ref, Kitzmiller vs Dover Board of Education 5/11, 9 min., 51 sec.
At 4:03 in the clip, Tiktaalik the transitional species is discussed. It was newly found at the production of this documentary. It was a flat headed animal with fins modified to operate on land that were composed of bones compareable with our shoulders.
I like the way Tiktaalik is portrayed on this rendition of the tree of life. Itís not positioned as the exact link between Primitive Fish and Tetrapods. Itís shown as a bit more of a cousin. I donít think exact links are usually found. So this is a more accurate portrayal of how these finds work.
Below the scientist describes how this transitional form fits between other species represented by fossils on the table.
See also Transitional Forms.