part 1] of the shales-with-'beef.' 63 



64. 3 inches. Fine conchoidal marl, with beef and occasional 

 very large nodules, which are as much as 1 foot thick 

 vertically, and invade 63 d. They are rather rare on 

 the cliff-section, and consequently this horizon is not so 

 easily detected there as might be expected from an 

 examination of the reefs. But their presence in the 

 cliff-section is valuable evidence for correlation with the 

 reefs ; and on the reefs, where they are fairly plentiful, 

 the nodules occur twice (see tig. 1, p. 50), indicating the 

 repetition caused by the middle of the three little faults 

 in the Shales-with-Beef at this part of the coast. This 

 middle fault has a downthrow of about 8 feet on the 

 west. Arnioceras sp. cf. obliquecostatum ; 3096. 

 Arnioceras sp. cf. turner i (J. Sowerby, lower figure) ; 

 3100-1. Arnioceras sp. ; 3094. Agassiceras sp. cf. 

 spinaries ; 4687-90, 4692-98. Agassiceras sp. ; 4400. 

 Belemnites acutus Phillips, non Miller ; 4685-86. 

 Plagiostoma sp. ; 3102-3. Avicula sp. cf. A. incequi- 

 valvis James Sowerby ; 3097-99. ? Gervillia sp. ; 

 3108-13. Ostrea sp. ; 3107. Rhynchonella sp. ; 

 3104-6. Ichthyosaurus sp., vertebra ; 4416. 



63 d. 11 inches. Fine conchoidal marl. Belemnites acutus 

 Phillips, non Miller ; 4701. Belemnites sp. ; 4700. 

 Rhynchonella sp. ; 4699. 



63 c. 1 inch. Strings of beef in friable marl. 



63 b. 1 foot. Fine conchoidal marl. Agassiceras sp. cf . 

 gauclryi(Jiejnes) ; 4702. Agassiceras sp. cf. spinaries; 

 4703-4. 



63 a. 1 inch. Beef- seam. 



62 b. 10 inches. Fine conchoidal marl to bedded marl. Agassi- 

 ceras sp. ; 4705 a. Avicula sp. ; 4705 b. 



62 a. 3 inches. Strings of beef in marl. 



61 b. 14 inches. Fine conchoidal mail. 



61a. Reef 8, repeated as Beef 10. 2 inches. 'Short-rock.' 

 Makes a distinct line near the base of the cliff beneath 

 Black Ven. Arnioceras sp. cf. anomaliferum; 3070-76. 

 A. sp. cf . obliquecostatum ; 3069. Agassiceras sp. 

 cf . spinaries ; 2812. Plagiostoma giganteum James 

 Sowerby (small specimens) ; 3077-86. Avicula sp. ; 

 3087-88. ? Avicula sp. ; 3090-92, Ostrea sp. cf . 

 pattern of O. irregularis Minister ; 3090. Oryphcea 

 sp., of a form near O. sublamellosa (Dunker) in 

 Dumortier, 1864, ' Etudes Pal. . . . Bassin du Rhone ' vol. i, 

 p. 79 & pi. vii, figs. 12-13 only ; 3089. 



60 h. 8 inches. Fine conchoidal to bedded marl. Arnioceras 

 . sp. ? cf . falcaries ; 4351. Arnioceras spp. ; 4352-57, 

 4719-22. Plagiostoma sp. ; 4350. ? Avicula sp. ; 

 4349. 



60 g. 2 inches. Beef-strings in marl. Arnioceras sp. ; 4706. 

 ? Avicula sp. ; 4707. Ichthyosaurus sp., large speci- 

 men, the anterior end of which is still in the cliff. 



