. Elements of geology. Geology. PART II. CHAPTER XIX. 239 Lower New Red Sandstone. (see Fig. 238.). In each pair of large and small steps, the great toes are turned alternately both to the right or both to the left.* For this unknown animal, Professoi*Kaup has proposed the provisional name of Chirotherium ; and he conjectures that it was a mammiferous quadruped, allied to the Fig. Line of footsteps on slab of sandstone. Hildburghausen, in Saxony. In the kangaroo, says Dr. Buckland, the first toe of the fore- foot is, in a similar manner, set obliquely to the others, like a
. Elements of geology. Geology. PART II. CHAPTER XIX. 239 Lower New Red Sandstone. (see Fig. 238.). In each pair of large and small steps, the great toes are turned alternately both to the right or both to the left.* For this unknown animal, Professoi*Kaup has proposed the provisional name of Chirotherium ; and he conjectures that it was a mammiferous quadruped, allied to the Fig. Line of footsteps on slab of sandstone. Hildburghausen, in Saxony. In the kangaroo, says Dr. Buckland, the first toe of the fore- foot is, in a similar manner, set obliquely to the others, like a thumb; and the disproportion between the fore and hind-feet is also very great. If it should be eventually proved that this ani- mal was really marsupial, these fossil relics belong to the most ancient mammiferous quadruped yet known to paloeontologists. It would scarcely be possible to draw a distinct line of de- marcation between the Keuper and Bunter Sandstein, in Germa- ny, where they are not barren of fossils, if the Muschelkalk did not intervene between them. In England, therefore, where this calcareous formation is wanting, and where there are scarcely any organic remains in. the Upper New Red marl and sandstone, we cannot feel assured that the divisions a. and c. of our Table, p. 236., do really coincide with the German Keuper and Bunter Sandstein. But it has been found convenient in the counties of Salop, Stafford, and Worcester, to divide the saliferous marls from the inferior quartzose conglomerate in the manner above indicated. LOWER NEW RED SANDSTONE AND MAGNESIAN LIMESTONE. We now come to the Lower New Red system, the position of which can best be determined in Germany, because it is there interposed between the Coal and Bunter Sandstein, or oldest part of the " Upper New Red," above described. In the south-west of England the New Red sandstone formation is unconformable to the Coal (see Fig. 232.); but in the north-east of England Professor Sedgwick has
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