nothing. he used his hands and feet
Othniel Charles Marsh was born on 1831-10-29.
july 13,2011
Prof. Othniel Charles Marsh, in 1889.
Prof. Othniel Charles Marsh, in 1889.
1878, by the great American paleontologist Othniel Charles Marsh.
1878, by the great American paleontologist Othniel Charles Marsh.
The Stegosaurus was originally named by the American paleontologist Othniel Charles Marsh in 1877.
Paleontologist Othniel C. Marsh discovered and named Stegosaurus in 1877.
Othniel Charles Marsh discovered Stegosaurus in 1877. The fossil was found in Morrison, Colorado.
Othniel Charles Marsh discovered Stegosaurus in 1877. The fossil was found in Morrison, Colorado.
Othniel Charles Marsh discovered Stegosaurus in 1877. The fossil was found in Morrison, Colorado.
Othniel Charles Marsh discovered Stegosaurus in 1877. The fossil was found in Morrison, Colorado.