92 



UPPER LIAS. 



organic remains ; fossiliferous veins have however been found at Frocester, Brimscombe, 

 Nailsworth, Uley Bury, North Nibley and Ozleworth, and doubtless might be discovered 

 in many other localities in this neighbourhood were the strata exposed. 



The fossiliferous vein at Nailsworth lies near the base of the sands 4 or 5 feet 

 above the Upper Lias clay. The bed consists of a fine soft ferruginous marly sandstone, 

 of a deep brown colour, containing much peroxide of iron, and many shells, mostly of 

 the same species as those found in the Cephalopoda bed at Procester. The difference 

 between these two beds is important, and deserves to be noticed, as the Cephalopoda bed 

 at Procester overlies the sands, -whilst the fossiliferous vein at Nailsworth is found at their 

 base, clearly proving that the sands and Cephalopoda bed form only one stage. 



Fossils of the Zone of Ammonites Jurensis. 



Reptilia. 

 Vertebrae of Ichthyosaurus. 



Pisces. 



Teeth of Hybodus. 



Cephalopoda. 



Ammonites opalinus, Reinecke. 



— Comensis, von Bach. 

 ■ — insignis, Schiibler. 



— Aalensis, Ziet. 



— liircinus, Schloth. 



— Jurensis, Zieten. 



— striatulus. Sow. 



— complanatus, Brug. 



— Thouarsensis, rf'0/'6. 



— radians, Reinecke. 



— striatulus. Sow. 



— Moorei, Lycett. 



— Boulbiensis, Y. and B. 



— inornatus, Williamson. 



— discoides, Zieten. 



Ammonites Raquinianus, d'Orb. 



— Levesquei, d^Orb. 



— fimbriatus. Sow. 



— Leckenbyi, Lyc. 



— variabilis, d' Orb., var. Beanii, Simp 



— variabilis, d'Orb., var. dispansus, 



Lyc. 



— obliquatus, Y. and B., the aged 



form of variabilis. 

 Nautilus latidorsatus, d' Orb. 

 Belemnites compressus, Voltz. 



— tripartitus, Schloth. 



— irregularis, Schloth. 



— Nodotianus, d'Orb. 



Gasteropoda. 



Pleurotomaria subdecorata, d'Orb. 

 Chemnitzia lineata, Sow. 

 •Turbo capitaneus, Miinst. 



Trochus duplicatus. Sow. 

 *Natica adducta, Phil. 

 — Oppelensis, Lyc. 



