Stock photography picture of Brontotherium leidyi Fossil Skull

AJFK4B - Licenced Caption Brontotherium leidyi Fossil Skull Description Brontotherium leidyi Skull and Lower Jaw 12 inch ruler Early Oligocene Chadronian Chadron Formation Squaw Creek Nebraska Phil Degginger Carnegie Museum Keywords Brontotherium, leidyi, Skull, Lower, Jaw, Early, Oligocene, Chadronian, Chadron, Formation, Squaw, Creek, Nebraska, fossil, prehistoric, skull, paleontology