Pluridens serpentis, became extinct around 66 million years ago. Scientists from the United Kingdom, France, and Morocco reconstructed this new species from “…two complete skulls and referred jaws.” Based on their reconstruction, the Pluridens serpentis was believed to have measured as long as 8 meters (26 feet). This is staggering as the majority of the species’ relatives only grew to about a few meters in length. It had “elongate and robust jaws, small teeth, and specialized tooth implantation” that would have helped it to catch small prey. Additionally, it wouldn’t have been able to see very far because it had such small eyes. According to the study, it probably “relied on nonvisual cues including touch and chemoreception during foraging, as in modern marine snakes.”