Cretaceous from about 66 million years ago
Lance Creek Formation
Wyoming, USA
T.REX ULNA BONE SECTION
Tyrannosaurus rex
Cretaceous 66 Million Years Old
Hell Creek Formation, South Dakota
T.REX METATARSAL BONE SECTION
T.REX HUMERUS BONE SECTION
Lance Creek Formation, Wyoming
Jurassic 150 Million Years Old
Morrison Formation, Utah
Rebbachisaurus sp
Cretaceous 98 Million Years Old
Morocco
TWO MEDICINE FORMATION
Cretaceous 75 Million Years
Montana
Hell Creek Formation
South Dakota, USA