VOL. XVII. (2) INFERIOR OOLITE— CHIPPING NORTON 



II. — Subdivisions recognizable in the Inferior 

 Oolite and Contiguous Deposits of the District. 



The subdivisions that are recognizable in the rocks under 

 consideration are shown in the following table : — 



table l— subdivisions of the nEvERAN beds, 

 chipping-norton limestone and inferior oolite series 



IN THE chipping-norton DISTRICT 

 Rhynchonella- and Ostrea-^ed. 

 3- Clay 



4. Ostrea-C\a.Y 



5. Neseran Slates [teste Walford). Roe-stone [teste 

 Walford). 



6. Bituminous Clay 



1 1 . V iviparus-Maxl 



12. Upper Neriyicsa-'BeA 



13. Cyathopora-bourgeti-'Bed 



14. Lower Neniiaa-Bed 



15. Astarte-oxoniensis-'LiTaestone 



16. Exelissa-L,imestone 

 18. Perna-'Bed 

 19 and 20. Reddish sand and clays with Placunopsis 



socialis. 



Chipping Norton Area Swerford Area Fulwell Area 



Non-seqttence 



Fuscte 

 7Zigzag 



Chipping 

 I Norton 



Limestone 



: O 



AS 



Oh--! 



Schlixnbachi \ 

 and late !• 

 Truellei ) 



Murchi- 

 soitce 



J ..„..„.. Knotty Bed 

 I Limestone [ Limestone 



Non-seque 

 Clypeus-Gvil 



Non-sequence 

 I A imisium- 

 pcrsonatum- 



xxiv. I Limestones 



■j XXV. Sc«5SM(»-Beds 



Non-sequence 

 Blue day Blue clay 



I Swerford Beds 

 J Trigonia-signaia- 

 I Bed or "Old Man ■ 

 I Hook-Norton Beds 



Conglomerate 



Scissum-Heii 



I Chipping 

 j- Norton 

 J Limestone 



Clypeus-Giit 



Conglomeratic 

 limestone 



H 



Marlstone 



Marlstone 



Non-sequence 

 Blue clay with lime- Blue clay, 

 stone-nodules, 30 

 to 40 feet in the 

 Hook Norton rail- 

 way cutting 

 Marlstone 



12 feet at 

 Fawler 



Marlstone 



^ (The geographical distribution of these deposits is too complicated to indicate in this table.) 



(xxv.) Sciss'um-Beds {scissi hemera). — These beds precisely 

 resemble, palaeontologically and lithologically, their equivalents 

 in the Cotteswold Hills, that is, they are, brown, sandy, calcare- 

 ous limestones with the usual fossils, such as, Rhynchonella 

 cynocephala (Rich.), R. subdecorata Dav., Volsella sowerbyana 

 (d'Orb.), Pholadomya fidicula Sow., Montlivaltia cf. lens 

 E. & H'., belemnites, and, in the Hook-Norton railway-cutting, 

 ammonites — Lioceras opalinum, L. thompsoni, Hammatoceras 

 aff. newtoni, etc. 



I The form eferred to by R. F. Tomes as occurring in " the beds of the Inferior Oolite, near 

 their junction with the Upper Lias." Proc. Geol. Assoc, vol. vi., No. 4 (1879), p. 154. 



