"Pliosaurids: Dominant Predators Emerged during the Early-Middle Jurassic Shift"

Researchers have identified a new species of pliosaurid plesiosaur, Lorrainosaurus keileni, from the mid-Middle Jurassic period in northeastern France. The fossil remains include a partial skeleton with a nearly complete mandible, indicating a large-bodied macropredatory marine reptile. This discovery sheds light on the evolutionary timeline and global context of apex-predator turnover in plesiosaurs during the Early-to-Middle Jurassic transition.