The origin of tetrapods.
Computer-based illustration, 2004. Published in:
Clack, J.A. 2004. From Fins to Fingers. Science, 304: 57-58.
Convergent separation of the middle ear bones from the mandible in the monotreme and therian mammalian lineages. Computer-based illustration, 2005. Published in:
Martin, T. & Luo, Zhe-Xi. 2005. Homoplasy in the Mammalian Ear.
Science, 307: 861-862.