Thin section of tooth of Squalicorax pristodontus from Cretaceous Phosphate beds Ouled Abdoun Basin Moroccao purchased from SDFossils on ebay Sept 2017.
Pictures of teeth from this shark and what palaeontologists think the shark looked like:
My photographs of my thin section of Squalicorax pristodontus tooth today under Zeiss IM microscope (Bresser MikrOkular camera):
The question I was keen to answer was whether this were easily seen differences between this tooth and my previous project (microscopy of O. Vinc tooth – posted earlier today). My conclusion was that, although similar structures could be seen in both teeth, the ratios of tooth in the different layers was significantly different and the enamel appears to be thinner. I wonder if that impression is real?