. Cassell's natural history. Animals; Animal behavior. FOiSIL RVMINANTIA. 79 As might be anticijinted from wliat has Uvn siiid al)Ove, and as indicatfd in tlie talih^ of classiticatioii of the Artiodactjda on page 330, Vol. II., tlie oldest forms of cloven-hoofed Mammalia must have been intermediate in structure between the Pigs and Ruminants. Such a creature existed at the close of the Eocene period in Chmropotamns, discovered first by the illustrious Cuvier in the palreontologically interesting gypsum beds at Montmartre. Another specimen has also been found near Ryde, ui the Lsle o
. Cassell's natural history. Animals; Animal behavior. FOiSIL RVMINANTIA. 79 As might be anticijinted from wliat has Uvn siiid al)Ove, and as indicatfd in tlie talih^ of classiticatioii of the Artiodactjda on page 330, Vol. II., tlie oldest forms of cloven-hoofed Mammalia must have been intermediate in structure between the Pigs and Ruminants. Such a creature existed at the close of the Eocene period in Chmropotamns, discovered first by the illustrious Cuvier in the palreontologically interesting gypsum beds at Montmartre. Another specimen has also been found near Ryde, ui the Lsle of Wight. The creature was pig-like in size, and in the tuberculated structure of its grinders, the parts, together with the lower jaw, alone discovered as yet. lli/opotaiims, Dkhohitiic, Xiphodon, and Cainofheriuiii were four-toed Upper Eocene transitional. forms approaching the Ruminants, but all possessing upper cuttiug-teeth, the last-named differing but little from the Deerlets. Oreodon is a genus of small pig-like animals, appearing first in the Miocene of North America, and evidently closely related to the Ruminantia. Sivatheriutn was a gigantic Ruminant with four horns in pairs, and evidently a trunk. Its remains are found in the Miocene deposits of the Sewalik hills of India. Deer, Oxen, Goats, and Sheep first appeared in the Pliocene period, as did Camels and Llamas. Antelopes and Giraffes existed earlier, namely, in the Late Miocene. It is a fact of interest that Camels are abundant in the Miocene and Pliocene of North America, whilst they are only very scantily distributed in the same strata of the Old World, Arabia and Asia being their sole living habitat. Among the most interesting of the Pleistocene species which has been discovered in Great Britain is the gigantic Irish deer, a species originally included with the Elk, on account of the pal- mation and outward inclination of its huge antlers, in some specimens, only a few inches less than. Please note that these
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