Coelophysis (SEEL-oh-FIE-sis) was a small, fast-moving, two-legged, sharp-toothed hunter. It moved in large packs, capturing early lizards, tiny mammal-like reptiles and small plant-eating dinosaurs like Technosaurus. Coelophysis means "hollow form" because of its hollow bones.
Length: 10 feet
Weight: 60 pounds
Time: 225 - 220 million years ago
Where Found: New Mexico, Arizona, Texas Panhandle
Think About It: The Panhandle region of Texas was once covered with streams, ponds, ferns and tropical plants and was surrounded on all sides by mountains with 100- to 200-foot high evergreen trees!