coelophysis: one of the oldest known dinosaurs; late Triassic; cannibalistic
ceratosaur: primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America
renal vein: veins that accompany renal arteries; open into the vena cava at the level of the 2nd lumbar vertebra