Examining the dentition, tooth measurements, and jaws of a dietary specialist, the prickly dogfish shark (Oxynotus bruniensis)

Dec 13, 2018

Joshua Moyer studied teeth and jaws of the prickly dogfish using several microscopy methods: light and polarizing microscopy and scanning electron microscopy. Co-author Mark Riccio is also doing CT scans on the specimens. In addition Josh prepared skeletal and fluid specimens suitable for the Natural History Collections.
                This shark has recently been described as a dietary specialist, which allows larger evolutionary questions about form and function and their impact on morphological specialization.
                Josh, a student of Duncan Irschick in the Organismic and Evolutionary Biology Graduate Program, worked with support from a Natural History Collections Summer Scholarship from the David J. Klingener Endowment Fund.
Read his report below.