ILLUSTRATIONS
PLATES
| TO FACE PAGE | ||
| 1. | Map showing distribution of pre-Cambrian Rocks | 4-5 |
| 2. | Middle Cambrian Merostomata (Sidneyia) | 30 |
| 3. | """ (Sidneyia) | 32 |
| 4. | """ (Sidneyia) | 34 |
| 5. | """ (Sidneyia and Amiella) | 36 |
| 6. | "" Trilobita and Merostomata (Neolenus and Sidneyia) | 38 |
| 7. | Cambrian and pre-Cambrian Merostomata (Sidneyia and Beltina) | 40 |
| 8. | Middle Cambrian Medusa and Holothurian (Peytoia and Eldonia) | 58 |
| 9. | Middle Cambrian Holothurians (Eldonia) | 60 |
| 10. | """ (Eldonia) | 62 |
| 11. | """ (Eldonia) | 64 |
| 12. | """ (Eldonia) | 66 |
| 13. | """ (Laggania, Mackenzia, and Louisella) | 68 |
| 14. | Cambrian Faunas of China (Micromitra (Paterina), Lingulella, Acrotreta, Orthotheca, Albertella, Stephanocare, Ptychoparia, Ptychoparia (Emmrichella), Crepicephalus, Pterocephalus, and Inouyia) | 102 |
| 15. | Cambrian Faunas of China (Agraulos, Lisania, Chuangia, Levisia, Anomocare, and Anomocarella) | 104 |
| 16. | Cambrian Faunas of China (Coosia, Asaphiscus, Bathyuriscus, and Solenopleura) | 106 |
| 17. | Cambrian Faunas of China (Anomocare, Anomocarella, and Levisia) | 108 |
| 18. | Middle Cambrian Annulata (Miskoia) | 134 |
| 19. | """ (Ottoia, Hyolithes, and Selkirkia) | 136 |
| 20. | Middle Cambrian Annulata (Pikaia and Oesia) | 138 |
| 21. | """ (Wiwaxia, Banffia, and Pollingeria | 140 |
| 22. | Middle Cambrian Annulata (Planolites, Worthenella, Amiskwia, and Ottoia) | 142 |
(vii)
