. The chordates. Chordata. Mammalia: (llassification. THEROMORPHA Fig. 594. A genealogic "tree" of the mammals. The general relationships of the branches are reasonably well supported by known facts, but the exact points and times of origin of many of the Orders are in more or less doubt. The origin of the Tubulidentata, not shown in the '"tree," is most uncertain. The Creodonta (f) are extinct. Branches curving downward indicate groups which have reverted to aquatic Please note that these images are extracted from scanned page images that may have been digitally enh
. The chordates. Chordata. Mammalia: (llassification. THEROMORPHA Fig. 594. A genealogic "tree" of the mammals. The general relationships of the branches are reasonably well supported by known facts, but the exact points and times of origin of many of the Orders are in more or less doubt. The origin of the Tubulidentata, not shown in the '"tree," is most uncertain. The Creodonta (f) are extinct. Branches curving downward indicate groups which have reverted to aquatic 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 Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : Blakiston
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