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If, as there is great reason to believe, true Birds existed in the Triassic epoch, the ornithoscelidous forms by which Reptiles passed into Birds must have preceded them. In fact there is, even at present, considerable ground for suspecting the existence of Dinosauria in the Permian formations; but, in that case, lizards must be of still earlier date.
Among Vertebrates there is no ordinally distinct fossil fish: there is only one extinct order of Amphibia the Labyrinthodonts; but there are at least four distinct orders of Reptilia, viz. the Ichthyosauria, Plesiosauria, Pterosauria, Dinosauria, and perhaps another or two.
"It can't be done, Peter. And it can't even be pretended. Imagine the mother of twins trying to flirt with a man even as nice as you are! It would be as bad as an elephant trying to be kittenish and about as absurd as one of your dinosauria getting up and trying to do a two-step.
If it was that of the carinate birds, how did the struthious birds and Dinosauria independently agree to differ?
He has given weighty reasons for thinking that the line of affinity between birds and reptiles passes to the birds last named from the Dinosauria rather than from the Pterodactyles, through Archeopteryx-like forms to the ordinary birds.
No evidence of past existence of minutely intermediate forms when such might be expected a priori. Bats, Pterodactyles, Dinosauria, and Birds. Ichthyosauria, Chelonia, and Anoura. Horse ancestry. Labyrinthodonts and Trilobites. Two subdivisions of the second relation of species to time.
Conscience, absence of, in some criminals. Constitution, difference of, in different races of men. Consumption, liability of Cebus Azarae to; connection between complexion and. Convergence of characters. Cooing of pigeons and doves. Cook, Captain, on the nobles of the Sandwich Islands. Cope, E.D., on the Dinosauria. Cophotis ceylanica, sexual differences of. Copris.
Among Vertebrates there is no ordinally distinct fossil fish: there is only one extinct order of Amphibia the Labyrinthodonts; but there are at least four distinct orders of Reptilia, viz. the Ichthyosauria, Plesiosauria, Pterosauria, Dinosauria, and perhaps another or two.
Among Vertebrates there is no ordinally distinct fossil fish: there is only one extinct order of Amphibia the Labyrinthodonts; but there are at least four distinct orders of Reptilia, viz. the Ichthyosauria, Plesiosauria, Pterosauria, Dinosauria, and perhaps another or two.
If, as there is great reason to believe, true Birds existed in the Triassic epoch, the ornithoscelidous forms by which Reptiles passed into Birds must have preceded them. In fact there is, even at present, considerable ground for suspecting the existence of Dinosauria in the Permian formations; but, in that case, lizards must be of still earlier date.
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