The Ancient Life History of the Earth - A Comprehensive Outline of the Principles and Leading Facts of - Palæontological Science by Henry Alleyne Nicholson
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page 14 of 578 (02%)
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44. _Strombodes pentagonus_.
45. _Columnaria alveolata_. 46. Group of Cystideans. 47. Group of Lower Silurian Crustaceans. 48. _Ptilodictya falciformis_. 49. _Ptilodictya Schafferi_. 50. Group of Lower Silurian Brachiopods. 51. Group of Lower Silurian Brachiopods. 52. _Murchisonia gracilis_. 53. _Bellerophon argo_. 54. _Maclurea crenulata_. 55. _Orthoceras crebriseptum_. 56. Restoration of _Orthoceras_. 57. Generalised section of the Upper Silurian rocks. 58. _Monograptus priodon_. 59. _Halysites catenularia_ and _H. agglomerata_. 60. Group of Upper Silurian Star-fishes. 61. _Protaster Sedgwickii_. 62. Group of Upper Silurian Crinoids. 63. _Planolites vulgaris_. 64. Group of Upper Silurian Trilobites. 65. _Pterygotus Anglicus_. 66. Group of Upper Silurian _Polyzoa_. 67. _Spirifera hysterica_. 68. Group of Upper Silurian Brachiopods. 69. Group of Upper Silurian Brachiopods. 70. _Pentamerus Knightii_. 71. _Cardiola interrupta, C. fibrosa_, and _Pterinoea subfalcata_. 72. Group of Upper Silurian Univalves. |
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