Bidspirit auction | BRONTOSAURUS HOMER A completely silicized
BRONTOSAURUS HOMER A completely silicized part of Brontosaurus humerus, dating back to the Upper Triassic period (more than 200 million years ago).
BRONTOSAURUS HOMER A completely silicized part of Brontosaurus humerus, dating back to the Upper Triassic period (more than 200 million years ago).