A pygmy right whale dissection by the Fordyce lab and various other parties (this was a while before I started here at OU). Starting clockwise from lower left: Yoshi Tanaka (OU); Anton Van Helden (Te Papa); Carol Loch Silva (OU); Moyna Muller (OU); Monica Buono (CENPAT); Gabriel Aguirre (OU); Felix Marx (OU); and two gentlemen I haven't met (if anyone can identify them I'll update this caption).
The entirety of the published fossil record of neobalaenid whales, a posterior process of a petrotympanic (earbone) there on the left side, with a modern Caperea petrosal for comparison. From Fitzgerald (2012).
Phylogenetic position and stratigraphic range of neobalaenids. From Fitzgerald (2012).
Fitzgerald, E.M.G. 2012. Possible neobalaenid from the Miocene of Australia implies a long evolutionary history for the pygmy right whale Caperea marginata (Cetacea, Mysticeti). Journal of Vertebrate Paleontology 32:976-980.
Graf, J., Jacobs, L., Polcyn, M., Mateus, O., Schulp, A. 2011. New fossil whales from Angola. Society of Vertebrate Paleontology 2011 meeting abstracts: 119A.