Tracks Small 252×320 Medium 505×640 Large 808×1024 Download TIFF Original 1893×2400 | (541.9 KB) Description This illustration shows the three-toed tracks of birds and reptiles. Keywords bird, Reptile, toe, track Galleries Bird Anatomy Source: James D. Dana, New Text-book of Geology (New York: Ivison, Blakeman & Company, 1883) 293
