. Die Descendenztheorie; . Hyracotheritim le- porinura (Owen). Zweiter oberer Back- zahn - i. Pachynolophus si- derolithicus (Pictet). Oberer Backzahn -\. Propalaeotherium aryeutonicum (Gerv.) Oberer Backzabn \i.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectevoluti, bookyear1901