. Dinocerata : a monograph of an extinct order of gigantic mammals. Dinocerata; Mammals, Fossil; Paleontology; Paleontology. CONCLUSIOK 173 Another order, also, which may be termed the Amblydactyla, passed off apparently from the main imgulate stem in the Cretaceous, and became extinct in the Eocene. One branch terminated in Corijpliodon, in the lower Eocene, and the other, represented by the Dinocerata, here described, came to an end in the Middle Eocene. In figure 147, below, a diagram is given, which shows graphically these lines of descent, and the most probable genealogy of modern Ungulat
. Dinocerata : a monograph of an extinct order of gigantic mammals. Dinocerata; Mammals, Fossil; Paleontology; Paleontology. CONCLUSIOK 173 Another order, also, which may be termed the Amblydactyla, passed off apparently from the main imgulate stem in the Cretaceous, and became extinct in the Eocene. One branch terminated in Corijpliodon, in the lower Eocene, and the other, represented by the Dinocerata, here described, came to an end in the Middle Eocene. In figure 147, below, a diagram is given, which shows graphically these lines of descent, and the most probable genealogy of modern Ungulates. The diagram, being on a plane, can only indicate the general position of these divergent FiGDRE 147.—Diagram to illustrate the genealogy of Ungulate Mammals. A comparison of this diagram with, the section on page 7 of this volume will make clear the special geological horizons of each group here referred to. The Hyracoidea are represented by tlie existing Hyrax, and no fossil remains of the group are known. The principal characters of the o-rder are as follows:. 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 Marsh, Othniel Charles, 1831-1899. Washington : United States Geological Survey : G. P. O.
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