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Relics of Primeval Life: Beginning of Life in the Dawn of Geological Time

Chapter 6: LIST OF ILLUSTRATIONS
By Sir John William Dawson
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About This Book

The author surveys fossil evidence for primordial life preserved in the oldest rock formations, tracing the chain of life backward through Cambrian, Precambrian, and Laurentian strata. He describes and analyzes key specimens, including stromatolitic and calcareous remains, and combines microscopic study with field observations to interpret their form and affinities. Chapters examine geological settings and preservational processes that enable organic traces to survive, while appendices review technical debates and criticisms surrounding identifications. The work weighs competing hypotheses about the origin and early evolution of life and proposes directions for further investigation.

LIST OF ILLUSTRATIONS

FIG. PAGE
Cryptozoon Boreale Frontispiece
Map xvi
1. Olenellus 20
2. Triarthrus 23
3. Hymenocaris 27
4. Ctenichnites 32
5, 6. Archæocyathus 35
7, 8. Cryptozoon 37, 39
9. Fossils in Lower Cambrian Boulder 41
10. Section Hanford Brook 51
11. Worm Tracks 53
12. Pre-Cambrian Fossils 54
13. Arenicolites and Aspidella 54
14. Cryptozoon 56
15. Worm Burrows 67
16. Casts of Foraminifera 68
17. Tudor Eozoon 69
18. Laurentian America 85
19. Map of Grenville Limestones 88
19A. Attitude of Limestone, Côte St. Pierre 91
20, 21. Disturbed Beds 103
22. Section of Limestone 113
23. Silicification of Coral 113
24. Cast of Polystomella in Glauconite 115
24A. Crinoid and Shell in Glauconite 116
25. Nature-print of Eozoon 121
26, 27. Eozoon from Calumet 130
28, 29. Canals of Eozoon 133
30, 31. Canals and Tubuli 135
32. General Form of Eozoon 149
33, 34. Eozoon with Funnels 152, 153
35. Small Specimen and Structure 155
36. Decalcified Eozoon 157
37. Finest Tubuli filled with Dolomite 158
38. Arrangement of Canals 159
39-41. Finest Tubuli 160-2
42. Canals after Möbius 163
43. Stromatocerium 172
44. Stromatopora 173
45. Cœnostroma 174
46. Recent Protozoa 176
47. Fragmental Eozoon 183
48, 49. Nummulites and Calcarina 186
50, 51. Archæospherinæ 190, 200
52. Acervuline Eozoon 205
53, 54. Archæospherinæ 205, 208
55. Ditto, Finland 212
56. Eozoon Bavaricum 213
57. Archæozoon 215
58. Restoration of Eozoon 230
59. Eozoon in Different States 237
60. Nature-print of Large Specimen To face 296

Click on map to view larger sized
Walker & Boutall SCt
Grenville Series on the Ottawa River (17 miles to an inch).
From Logan's Original Map of 1865.

THE CHAIN OF LIFE TRACED BACKWARD
IN GEOLOGICAL TIME

GEOLOGICAL CHRONOLOGY OF LIFE.

After Prof. C. A. White.

See transcription below.

Note.—It is not supposed that the Geological Periods were of equal lengths, as represented in the diagram.

ERRATA.

Where Cryptozoon prolificum occurs in the text, read Cryptozoon proliferum.

[Transcriber Note: Errata Corrections HAVE BEEN applied to text!]