Figure 13-23. Natural casts of dinosaur footprints removed from the Price River Coal Company mine roof. 13-16, pedes with short, triangular toes and broad round heel; center of foot is always pressed deeper than the toes, no callous pads under toes; these, including Figure 20 below, may all have been made by the same or similar hadrosaur taxa, 38, 51.5, 48, and 53 cm long respectively. 17, pes with longer toes, broat rounded heel, made by a probable hadrosaur, 59 cm long. 18, pes, toes of variable size, broad rounded heel, made by a probable hadrosaur, 68 cm long; note parallel striations produced by mining equipment. 19, pes, center toe well defined, lateral toes obscure, rounded heel, probable hadrosaur, 48 cm long; 20, pes, short toes, rounded heel, probable hadrosaur, 58 cm long. 21-22, four-toed, 38 and 56 cm long respectively. 23, pes?, Dinosauropodes osborni Lull, a possible ceratopsian, 46 cm long.

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