The book The Evolution of Man — volume 2 was written by author Haeckel, Ernst Heinrich Philipp August, 1834-1919 Here you can read free online of The Evolution of Man — volume 2 book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Evolution of Man — volume 2 a good or bad book?
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266. Skull of a Permian lizard (Palaehatteria longicaudata). (From Credner. ) n nasal bone, pf frontal bone, l lachrymal bone, popostorbital bone, sq covering bone, i cheek-bone, vo vomer, iminter-maxillary. ) If we examine this undoubted fact from the point of view of phylogeny, in the light of the theory of descent, it follows at once that man isof a common stem with all the other Mammals, and comes from the sameroot as they. But the various features in which the Mammals agree andby which the...y are distinguished are of such a character as to make apolyphyletic hypothesis quite inadmissible. It is impossible toentertain the idea that all the living and extinct Mammals come from anumber of separate roots. If we accept the general theory ofevolution, we are bound to admit the monophyletic hypothesis of thedescent of all the Mammals (including man) from a single mammalianstem-form. We may call this long-extinct root-form and its earliestdescendants (a few genera of one family) "primitive mammals" or"stem-mammals" (Promammalia).
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