• James Ellsworth posted a new specimen. 7 months, 1 week ago

    7 months, 1 week ago
    7 months, 1 week ago

    James Ellsworth has contributed specimen mFeM 85631 to myFOSSIL!

    • Hi @james-ellsworth, I saw your message, but I’m unsure why your comment is showing up here. The ‘ears’ are lateral cusplets, which may have served to help grasp prey and/or prevent food from getting trapped between the teeth. The ancestor of Megalodon had much more prominent lateral cusplets, which were gradually reduced and eventually lost. Arguably, due to a change in diet to fleshier prey. You can read more about it here

    • The ancestral species had more fish in their diet. The lateral cusplets serve to stab and hold the fish, like the tines on a fork. As this lineage progressed, the teeth were used to bite into whale blubber which requires a wider serrated cutting tooth (like a steak knife) which rendered the cusplets virtually useless, thus over time, it started to eliminate them.