Fig. 1. Impressions of footsteps of several unknown animals upon a slab of New Red Sandstone found at the depth of eighteen feet in a quarry at Hessberg, near Hildburghausen in Saxony. (Sickler.)

The larger footsteps a. b. c. are referred to an animal named provisionally, Chirothenium. The fore feet of this animal were less by one half than the hind feet, and the tracks of all the feet are [037] in thc same straight line. The footsteps d. e. f. form part of another track of the same kind. Some of the large toes of the Chirotherium, and also of the smaller species, have left distinct impressions of nails: g. h. i. k. l. m. n. o. p. q. form the track of an animal of another species, probably a Tortoise, crossing the same slab, in a different direction.

The irregular cylindrical concretions that intersect each other on the surface of this slab, appear to have been formed in cracks, caused by the contraction of a thin bed of green marl, interposed between two deposits of Sandstone. See note, V. I. p. 266.

Fig. 2. One of the impressions of the hind feet of Chirotherium, on the slab Fig. 1; half nat. size. (Sickler.)

Fig. 3. One of the footsteps in the track of the smaller animal, upon this slab; nat. size. (Sickler.)
M. Link has made out the footsteps of four species of animals in the Hildburghausen sandstone; and it has been conjectured that some of these have been derived from gigantic Batrachians.