Evolution of Man e-bog

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Mammalian Character of Mam - Common Descent of all Mammals from a Single Parent-form (promammalian). - Bifurcation of the Amnion Animals into Two Main Lines: on the one side, Rep tiles and Birds, on the other, Mammals. - Date of the Origin of Mammals: the Trias Period. - The Three Main Groups or Sub classes of Mammals: their Genealogical Relations - Sixteenth Ancestral Stage Cloacal Animals (monotremata, or Ornithodelphia). - 'l'he Extinct Primitive Mammals (promammalz'a) and the Extant Beaked Animals (ornithostoma). - Seventeenth Ancestral Stage Pouched Animals (marsupialia, or Dz'delphia). - Extinct and Extant Pouched Animals - Their Intermediate Position between Mono tremes and Placental Animals - Origin and Structure of Placental Animals (placentalia, or - Formation of the Pla centa. - The Deciduous Embryonic Membrane (decidua). - Group of the Indecidua. And of the Deciduata. - The Formation of the Decidua (vera, serotina, reflexa) in Man and in Apes - Eighteenth Stage: Semi-apes (prosimice). - Nineteenth Stage: Tailed Apes (menocerca). - Twentieth Stage Man-like Apes (anthropoides). Speechless and Speaking Men (mali. Homines)