187 



The zone at Cleeve Hill contains several species of large 

 corals, and in other localities coralline masses are found in the 

 upper beds ; in fact, this coral bed formed the upper reef of 

 the Inferior Oolite, the lower reef resting on the Pea Grit, 

 the middle on the Freestone, and the upper occupying the 

 horizon of the Upper Trigonia Grit. The following section 

 shews the true position of the upper coral bed : — 



Section op the Qitakrt at Worgin's Corner, near 

 Slab Valley. 



Masses of coralline Lime- 

 stone, highly crystal- 

 lized, 4 feet thick. 



Hard shelly Limestone, 

 fiill of the shells of 

 Brachiopoda, 5 feet 

 thick. 



Hard shelly sandy Oolite, 

 full of the shells of 

 Gryphsea, 6 feet thick. 



Upper Coral Eeef. 



Brachiopoda Bed. 



Gryph^a Bed. 



Thamnastrcea, Isastrcea, 

 Thecosmilia, Magnotia 

 Forhesii, Stomechinua 

 intermedius, Trigonia 

 costata, Latomeandra. 



Terehratula globata, 

 Rhynchonella spinosa, 

 Pholadomya fidicula, 

 P. Heraulti, Gervillia, 

 Ostrea, Trichites. 



Gri/phoea suhldbata, Lima 

 proboscidea, Gervillia 

 tortuosa, Hyhcclypua 

 caudatus. 



I have obtained the following fossils from this zone : — 



Cephalopoda. 

 Belemnites canaUculatus, Schloth. Ammonites Parkinsoni, Sow, 



II giganteus, Schloth. « Garantianus, d'Orb, 



Nautilus lineatus. Sow. « Martinsii, d'Orb. 



II polygonalis, Sow. » subradiatus. Sow. 



II sinuatus, Sow, " Truellei, d'Orb. 



Gasteropoda. 

 Chemnitzia procera, Desl. Trochotoma carinata, Lye. 



Pleurotomaria fasciata, Sow. Melania scaliformis, Desl. 



Natica adducta, Phil. Neritopsis Bajocencis, d'Orb. 



Conchifera. 

 Trigonia costata, Sow. Goniomya angulifera, Sow. 



Pholadomya fidicula. Sow. Lima proboscidea. Sow. 



" Heraulti, Agass. " gibbosa, Sow. 



II OAOilum, Agass, " compressa, Wr. 



Myopsis dilatata, Phil. Gervillia Hai-tmanni, Gold/, 



