154 



THE LIAS AMMONITES. 



Anthozoa, 



Montlivaltia Delabecliei, Edw. Sf Haime. 



— Waterhousei, Edw. Sf Haime, 



— cupuliformis, Edw. 8f Haime. 

 Axosmilia Wrightii, Edw. Sf Haime. 

 Latomseandra Flemingii, Edw. ^ Haime. 



Isastrsea tenuistriata, Edw. Sf Haime. 



— limitata, Edw. Sf Haime. 

 Thamnastrsea Mettensis, Edw. Sf Haime. 



— Defranciana, Edw. Sf Haime. 



— fangiformis, Edw. Sf Haime. 



The annexed generalised section of Cleeve Hill, Gloucestershire, gives all the Inferior 

 Oolite beds in their relative position, and at the same time shows how they rest 

 conformably on the Lytoceras Jurense zone beneath. The beds are described in 

 descending order, commencing with those exposed at the summit of the hill. 



I divide the Inferior Oolite in this county into three zones : — 



A. Zone of Cosmoceras Parkinsoni. 



B. Zone of Stephanoceras Humphriesianum. 

 c. Zone of Harpoceras MurcJdsona. 



Description of the Cleeve Hill Section. 



A. The Zone of Cosmoceras Parkinsoni. 



No. 1 in fig. 12, consists of a, rubbly oolite above, hard slabs of ragstone in the middle, 

 and a clayey bed below, passing into |3, a sandy oolite of a rich brownish colour, freely 

 specked with ferruginous grains of silicate of iron. I have obtained the following fossils 

 therefrom : — 



Cosmoceras Parkinsoni, Sow. 

 Perisphinctes Martinsii, d' Orb. 



Pleurotomaria fasciata, Sow. 

 Trochotoma carinata, Lye. 



Trigonia costata, Sow. 

 Pholadomya ovulutn, Agass. 



— fidicula, Sow. 



— Heraulti, Agass. 

 Myopsis dilatata, Phil. 

 Goniomya angulifera, Sow. 

 Lima proboscidea, Sow. 



— gibbosa, Sow. 



Cephalopoda. 



Nautilus lineatus, Sow. 

 Belemnites canaliculatus, Schloth, 



Gasteropoda. 



Natica adducta, Phil. 

 Monodonta isevigata, Sow. 



Lamellibranchiata. 



Lima compressa, Wright. 

 Gryphsea sublobata, Desh. 

 Trichites undulatus, Lye. 

 Gervillia Hartmanni, Gold/: 

 Opis cordiformis, Lye. 

 Modiola Sowerbii, d'Orh. 



— bipartita, Sow. 



— imbricata, Sow. 



