. The age of mammals in Europe, Asia and North America. Mammals, Fossil; Paleontology. 192 THE AGE OF MAMMALS Among animals of prey, representatives of the true cats (Felicia?, Pseu- dcelurus) first appear, and in tlie streams for the first time the otters (Pota- motherium) occur. Probably also from northern Eurasia or from America arrived the first of the saber-tooth cats (Felida^-Machaerodontinae); it is noteworthy tliat machajrodonts (Dinidis) are also first known in the Lower Oligocene of our western plains. Still greater variety is lent to the mammalian fauna by the entrance either from s


. The age of mammals in Europe, Asia and North America. Mammals, Fossil; Paleontology. 192 THE AGE OF MAMMALS Among animals of prey, representatives of the true cats (Felicia?, Pseu- dcelurus) first appear, and in tlie streams for the first time the otters (Pota- motherium) occur. Probably also from northern Eurasia or from America arrived the first of the saber-tooth cats (Felida^-Machaerodontinae); it is noteworthy tliat machajrodonts (Dinidis) are also first known in the Lower Oligocene of our western plains. Still greater variety is lent to the mammalian fauna by the entrance either from southern Asia or from Africa of representatives of two of the. Fig. 83. — Entelodoiits of the New and Old Worlds. Model of the giunt Upper Oligo- cene entelodont Dinohyus hollandi of western Nebraska. From original by Theodore A. Mills, executed under the direction of O. A. Peterson, in the Carnegie Museum, Pittsburg. edentate orders, the aardvarks (Tubulidentata), which are represented by the archaic Archceorycteropus, and the pangolins, or scaly anteaters, repre- sented by Leptomanis. Since these animals have not as yet been found in the Lower Oligocene of Africa, it is uncertain whether they are of African or of Asiatic origin; on the whole, the evidence favors their northerly or Asiatic origin; the pangolins are widely distributed in the later Caenozoic of Asia. Altogether this assemblage, as listed by Deperet, is a most imposing one. As shown in the accompanying conspectus, mingled with these new migrant or foreign forms we find the continuation of the greater part of the Lower Oligocene mammals as listed on p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Osborn, Henry Fairfield, 1857-1935. New York, The Macmillan Company


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea