180 



No, 3. — Lower Trigonia bed, light or brownish-coloured, thin 

 bedded, oolitic ragstone, often iron- shot, containing in some 

 localities many fossil shells in fine preservation. Perna rugosa, 

 Gervillia Hartmanni, TancrecUa donaciformis, Lima gihhosa, Echi- 

 nobrissus clunicularis, Pedina rotata, Holectypus depressus, and 

 Magnolia Forhesii, appear in this bank for the first time. 



No. 4. — Upper flaggy Freestone, non-fossiliferons, 34 feet 

 thick : it appears to be the equivalent of a bed at Cleeve 

 Hill which contains a rich fauna. 



No. 5. — Fimbria bed, or Oolite Marl, a cream-coloured mud- 

 stone resembling chalk marl, 8 feet thick. The dominant 

 shell is Terebratula fimbria; it contains likewise Terebratula 

 carinata, Lueina Wrightii, Lima pontonis, Natica Leckhampton- 

 enses, N. adducta, Mytihis pectinatus, Astarte elegans, Nerincea, 

 Chemnitzia, and masses of coral Thamnastrcea Mettensis, &c. 



No. 6. — Lower thick-bedded Freestone a compact, light- 

 coloured, fine-gTained, oolitic Hmestone, extensively used for 

 building purposes ; it attains a thickness of 150 feet. 



7, A. — Pea Grit, a brown, coarse, rubbly oolite, full of 

 flattened concretions cemented together in a calcareous matrix. 

 When the block weathers the concretions resemble flattened 

 peas. It contains many fossils in fine preservation, as Ammonites 

 MurcJiisonce, Pecten personatus, Pseudodiadema depressum, Pygaster 

 semisulcatus, Galeropygus agariciformis, Stellaster obtusus, Acro- 

 salenia Lycettii, &c. 



7, B. — A hard, cream-coloured, pisolitic limestone, composed 

 of similar circular and flattened concretions. 



7, C. — A coarse brown ferruginous rock, which readily breaks 

 up and is reduced to mud by the fi'ost, with few fossils. These 

 three beds are upwards of 40 feet. 



No. 8, D. — Ammonite led, with Ammonites opalinus feebly 

 represented here, but largely so in the southern Cotteswolds, 

 as at Haresfield, Nailsworth, Frocester, &c. 



No. 9, F. — Upper Lias Sands, very thin, about 20 feet ; they 

 thicken out in their course southwards, and attain a great 

 thickness at Frocester Hill, Uley Bury, &c., resting on — 



9^ Y. — Nodular band, with Ammonites Walcotii, Am. communis, 

 200 feet. 



