Radotina, a primitive jawed vertebrates with teeth from 409 million years ago. |
Scientists have found what can only be described as the common ancestors of the teeth of both bony vertebrates and cartilaginous fish, bearing characteristics of both types - what creationists would refer to as a 'transitional' fossil, only it's not transitional between two major branches of the vertebrates, but ancestral to them.
The teeth were discovered by scientists from Uppsala University, Charles University (Czech Republic), Natural History Museum in London (UK), National Museum in Prague (Czech Republic) and the ESRF
The ESRF press release explains: