Paleo Bites


Hybodus, the Crooked Tooth

Ep. 166

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Host Matthew Donald and guest co-host Natasha Krech discuss Hybodus, a seemingly ordinary looking shark that might have actually had a temporal range of nearly 200 million years because, evolutionarily speaking, it was perfect. Sharks, man. From the Late Permian to the Late Cretaceous, this 6-foot hybodont fish had little spikes adorning its dorsal fins as its distinguishing feature, which I guess made all the difference in the world. I mean, none of the other sharks had spikes and this one did, and correlation always equals causation!

Want to further support the show? Sign up to our Patreon for exclusive bonus content at Also, you can purchase Matthew Donald's dinosaur book "Megazoic" on Amazon by clicking here, its sequel "Megazoic: The Primeval Power" by clicking here, its third installment "Megazoic: The Hunted Ones" by clicking here, or its final installment "Megazoic: An Era's End" by clicking here, as well as his non-dinosaur-related book "Teslanauts" by clicking here.

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