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Dragons of the Air: An Account of Extinct Flying Reptiles
اقرأ عينة مجانية

Dragons of the Air: An Account of Extinct Flying Reptiles

بقلم Seeley H G (Harry Govier)

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DRAGONS OF THE AIR

 

 


FIG. 47.   RHAMPHORHYNCHUS PHYLLURUS

SHOWING THE PRESERVATION OF THE WING MEMBRANES
From the Lithographic slate of Eichstädt, Bavaria

Frontispiece


DRAGONS OF THE AIR

AN ACCOUNT OF
EXTINCT FLYING REPTILES

BY

H. G. SEELEY, F.R.S.

PROFESSOR OF GEOLOGY IN KING'S COLLEGE, LONDON; LECTURER ON GEOLOGY
AND MINERALOGY IN THE ROYAL INDIAN ENGINEERING COLLEGE

WITH EIGHTY ILLUSTRATIONS

"I AM A BROTHER OF DRAGONS" Job xxx. 29

NEW YORK: D. APPLETON & CO.
LONDON: METHUEN & CO.
1901


PREFACE

I was a student of law at a time when Sir Richard Owen was lecturing on Extinct Fossil Reptiles. The skill of the great master, who built bones together as a child builds with a box of bricks, taught me that the laws which determine the forms of animals were less understood at that time than the laws which govern the relations of men in their country. The laws of Nature promised a better return of new knowledge for reasonable study. A lecture on Flying Reptiles determined me to attempt to fathom the mysteries which gave new types of life to the Earth and afterwards took them away.

Thus I became the very humble servant of the Dragons of the Air. Knowing but little about them I went to Cambridge, and for ten years worked with the Professor of Geology, the late Rev. Adam Sedgwick, LL.D., F.R.S., in gathering their bones from the so-called Cambridge Coprolite bed, the Cambridge Greensand. The bones came in thousands, battered and broken, but instructive as better materials might not have been. My rooms became filled with remains of existing birds, lizards, and mammals, which threw light on the astonishing collection of old bones which I assisted in bringing together for the University.

In time I had something to say about Flying Animals which was new. The story was told in the theatre of the Royal Institution, in a series of lectures. Some of them were repeated in several English towns. There was still much to learn of foreign forms of flying animals; but at last, with the aid of the Government grant administered by the Royal Society, and the chiefs of the great Continental museums, I saw all the specimens in Europe.

So I have again written out my lectures, with the aid of the latest discoveries, and the story of animal structure has lost nothing in interest as a twice-told tale. It still presents in epitome the story of life on the Earth. He who understands whence the Flying Reptiles came, how they endured, and disappeared from the Earth, has solved some of the greatest mysteries of life. I have only contributed something towards solving the problems.

In telling my story, chiefly of facts in Nature, an attempt is made to show how a naturalist does his work, in the hope that perhaps a few readers will find happiness in following the workings of the laws of life. Such an illumination has proved to many worth seeking, a solid return for labour, which is not to be marketed on the Exchange, but may be taken freely without exhausting the treasury of Nature's truths. Such outlines of knowledge as here are offered to a larger public, may also, I believe, be acceptable to students of science and scientific men.

The drawings given in illustration of the text have been made for me by Miss E. B. Seeley.

H. G. S.

Kensington, May, 1901


CONTENTS

PAGE CHAPTER I. FLYING REPTILES 1 CHAPTER II. HOW A REPTILE IS KNOWN 4 CHAPTER III. A REPTILE IS KNOWN BY ITS BONES 11 CHAPTER IV. ANIMALS WHICH FLY 15 CHAPTER V. DISCOVERY OF THE PTERODACTYLE 27 CHAPTER VI. HOW ANIMALS ARE INTERPRETED BY THEIR BONES 37 CHAPTER VII. INTERPRETATION OF PTERODACTYLES BY THEIR SOFT PARTS 45
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tag="{http://www.w3.org/1999/xhtml}a">CHAPTER VIII. THE PLAN OF THE SKELETON 58 CHAPTER IX. THE BACKBONE, OR VERTEBRAL COLUMN 78 CHAPTER X. THE HIP-GIRDLE AND HIND LIMB 93 CHAPTER XI. SHOULDER-GIRDLE AND FORE LIMB 107 CHAPTER XII. EVIDENCES OF THE ANIMAL'S HABITS FROM ITS REMAINS 134 CHAPTER XIII. ANCIENT ORNITHOSAURS FROM THE LIAS 143 CHAPTER XIV. ORNITHOSAURS FROM THE MIDDLE SECONDARY ROCKS 153 CHAPTER XV. ORNITHOSAURS FROM THE UPPER SECONDARY ROCKS 172 CHAPTER XVI. CLASSIFICATION OF THE ORNITHOSAURIA 187 CHAPTER XVII. FAMILY RELATIONS OF PTERODACTYLES TO ANIMALS WHICH LIVED WITH THEM 196 CHAPTER XVIII. HOW PTERODACTYLES MAY HAVE ORIGINATED 213   APPENDIX 231   INDEX 233

LIST OF ILLUSTRATIONS

FIG. PAGE 47. Wings of Rhamphorhynchus Frontispiece 1. Lung of the lung-fish Ceratodus 5 2. Attachment of the lower jaw in a Mammal and in a Pterodactyle 12 3. Chaldæan Dragon 15 4. Winged human figure from the Temple of Ephesus 16
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5. Flying fish Exocœtus 18 6. Flying Frog 19 7. Flying Lizard (Draco) 20 8. Birds in flight 22 9. Flying Squirrel (Pteromys) 24 10. Bats, flying and walking 25 11. Skeleton of Pterodactylus longirostris 28 12. The skeleton restored 29 13. The animal form restored 30 14. Fore limbs in four types of mammals 38 15. Pneumatic foramen in Pterodactyle bone 46 16. Lungs of the bird Apteryx 48 17. Air cells in the body of an Ostrich 49 18. Lung of a Chameleon 51 19. Brain in Pterodactyle, Mammal, Bird, and Reptiles 53 20. Skull of Kingfisher and Rhamphorhynchus 63 21. Skull of Heron and Rhamphorhynchus 65 22. Palate of Macrocercus and ? Campylognathus 71 23. Lower jaw of Echidna and Ornithostoma 76 24. First two neck vertebræ of Ornithocheirus
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href="@public@vhost@g@gutenberg@html@files@35316@[email protected]#Page_81" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">81 25. Middle neck vertebræ of Ornithocheirus 83 26. Back vertebra of Ornithocheirus and Crocodile 86 27. Sacrum, with hip bones, of Rhamphorhynchus 88 28. Extremity of tail of Rhamphorhynchus phyllurus 91 29. Hip-girdle bones in Apteryx and Rhamphorhynchus 95 30. Pelvis with prepubic bone in Pterodactylus 96 31. Pelvis with prepubic bones in Rhamphorhynchus 97 32. Pelvis of an Alligator seen from below 98 33. Femora: Echidna, Ornithocheirus, Ursus 100 34. Tibia and fibula: Dimorphodon and Vulture 102 35. Metatarsus and digits in three Pterodactyles 104 36. Sternum in Cormorant and Rhamphorhynchus 108 37. Sternum in Ornithocheirus 109 38. Shoulder-girdle bones in a bird and three Pterodactyles 113 39. The Notarium from the back of Ornithocheirus 115 40. The shoulder-girdle of Ornithocheirus 115 41. Humerus of Pigeon and Ornithocheirus 119 42. Fore-arm of Golden Eagle and Dimorphodon 120 43. Wrist bones of Ornithocheirus
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href="@public@vhost@g@gutenberg@html@files@35316@[email protected]#Page_124" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">124 44. Clawed digits of the hand in two Pterodactyles 125 45. Claw from the hand of Ornithocheirus 129 46. The hand in Archæopteryx and the Ostrich 130 48. Slab of Lias with bones of Dimorphodon To face page 143 49. Dimorphodon (restored form) at rest 144 50. Dimorphodon (restored form of the animal) To face page 145 51. Dimorphodon skeleton, walking as a quadruped To face page 146 52. Dimorphodon skeleton as a biped To face page 147 53. Lower jaw of Dorygnathus 149 54. Dimorphodon (wing membranes spread for flight) To face page 150 55. Pelvis of Dimorphodon 151 56. Rhamphorhynchus skeleton (restored) 161 57. Scaphognathus (restoration of 1875) 163 58. Six restorations of Ornithosaurs 164 59. Ptenodracon skeleton (restored) 167 60. Cycnorhamphus suevicus slab with bones To face page 168 61. Cycnorhamphus suevicus (form of the animal) To face page 169 62. Cycnorhamphus suevicus skeleton (restored) 170 63.
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align="left">Cycnorhamphus Fraasi (restored skeleton form of the animal) To face page 170 64. Cycnorhamphus Fraasi (restoration of the form of the body) To face page 171 65. Neck vertebra of Doratorhynchus from the Purbeck 173 66. Neck bone of Ornithodesmus from the Wealden 173 67. Sternum of Ornithodesmus, seen from the front 175 68. Sternum of Ornithodesmus, side view, showing the keel 175 69. Diagram of known parts of skull of Ornithocheirus 177 70. Neck bone of Ornithocheirus 179 71. Jaws of Ornithocheirus from the Chalk 180 72. Palate of the English Toothless Pterodactyle 181 73. Two views of the skull of Ornithostoma (Pteranodon) 182 74. Skeleton of Ornithostoma 183 75. Comparison of six skulls of Ornithosaurs 192 76. Pelvis of Ornithostoma 195 77. Skull of Anchisaurus and Dimorphodon 199 78. Skull of Ornithosuchus and Dimorphodon 201 79. The pelvis in Ornithosaur and Dinosaur 204 80. The prepubic bones in Dimorphodon and Iguanodon 206