©Mark Purnell

This is an oblique anterior view of a model of the apparatus of the Pennsylvanian conodont Idiognathodus. For more information, including more illustrations (inc. stereo pairs), a detailed description, and discussion of the implications of this model for conodont functional morphology, ozarkodinid skeletal architecture, and element homologies, you need to look at the following published papers:

Purnell, M. A., & Donoghue, P. C. J. 1997: Architecture and functional morphology of the skeletal apparatus of ozarkodinid conodonts. Philosophical Transactions of the Royal Society of London, Series B 352, 1545-1564.

Purnell, M. A., & Donoghue, P. C. J. 1998: Skeletal architecture, homologies and taphonomy of ozarkodinid conodonts. Palaeontology 41, 57-102.