Nomogenesis: Or, Evolution Determined by LawM.I.T. Press, 1969 - Всего страниц: 477 |
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Стр. 181
... birds to be explained ? The most natural answer would seem to be , that the dinosaurs are the ancestors of birds . Such a solution was formerly actually arrived at by some zoologists and palaeontologists , with the reservation that not ...
... birds to be explained ? The most natural answer would seem to be , that the dinosaurs are the ancestors of birds . Such a solution was formerly actually arrived at by some zoologists and palaeontologists , with the reservation that not ...
Стр. 189
... birds . There can be no doubt , however , that they are not the ancestors of birds : although , for the purposes of flight , both in the pterosaurs and in birds , use has been made of the modified fore - limbs , yet that modification ...
... birds . There can be no doubt , however , that they are not the ancestors of birds : although , for the purposes of flight , both in the pterosaurs and in birds , use has been made of the modified fore - limbs , yet that modification ...
Стр. 191
... birds . The pneumatic opening in the humerus of the pterodactyls lies in the very same position and has the same size and shape , as in birds . Obviously , these openings were penetrated by the air - sacs of the lungs , and it is to be ...
... birds . The pneumatic opening in the humerus of the pterodactyls lies in the very same position and has the same size and shape , as in birds . Obviously , these openings were penetrated by the air - sacs of the lungs , and it is to be ...
Содержание
THE STRUGGLE FOR EXISTENCE AND NATURAL | 1 |
Various types of the struggle for existence | 45 |
Is survival a privilege of the bearers of useful | 62 |
Авторские права | |
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Abel accidental according adapted adult allied America ammonites amphibians ancestors angiosperms Animals and Plants appear belonging Bennettitales birds bones butterflies Carinatae chance chap characters colour common complex Craniata Cretaceous Crossopterygii Darwin definite direction derived determined direction dicotyledons dinosaurs Dipnoi dorsal due to convergence embryo evolution exhibit external extinct female fins fishes formation forms Fürbringer genera genus groups gymnosperms hind-limbs independently insects instance Kuznetzov lamarckiana latter living Lotsy lower male mammals manifested means mimicry Monochlamydeae monocotyledons mutations natural selection number of individuals observed occur ontogeny opinion organisation Origin of Species Ornithischia orthogenesis Osborn parallel pectoral peculiar phenomena phylogeny Piperales placenta Placentalia Polycarpicae polyphyletic polyphyletic origin possess primitive produced Pseudosuchia pterosaurs Ratitae referred regarded remarkable reptiles resemblance Russian Saurischia says seeds shell similar skull structure struggle for existence sub-species teeth Teleostomi tendency tetrapods theory tion transformation varieties Vavilov vertebrates Vries wings