Also called a straight ammonite, Bacculite is an ammonite mollusk with a straight, not spiraled, shell.
With its leathery skin, long tail, short legs, and needle-like teeth, the nothosaur resembled a prehistoric crocodile.
With eyes 10 inches (25.4 centimeters) wide, Temnodontosaurus could see in near-lightless conditions and probably dove for food.