56 Mr. J. Lycett on the Upper Lias of Gloucestershire. 



The following is the section, to which figures are here added, 

 to mark the superior divisions : 



Inferior Oolite 



ery micaceous sand 



Sand, with beds of unctuous, slaty, bluish clay 



Blue clay with septaria. 



in beds of grey Lias-like marlstone 



Lenticular balls of indurated marl with Ammonites and 

 parts of Fishes 6 



2 



3 



4 



'Marly sandstone, a yellowish-brown sandstone, spangled with 

 mica, blue at the heart, abounding with large Belemnites, 

 Pectens, &c 



'Marl and clay 



'Clay, with veins of foxy earth containing ferruginous nodules 

 concentrically formed round a nucleus of Lias 



'Lias. 



10 



1. The lower portion of the Inferior Oolite; thick beds of 

 coarse, calcareous, shelly gritstone, more or less tinged with 

 oxide of iron. 



2. The sands of the Cynocephala-stage, with a shelly band at 

 the top, some flaggy argillaceous sandstones in the middle, and 

 a shelly band at the bottom. 



3. 4, 5, 6. Upper Lias; no fossils visible in this section. 



7. Marlstone or Middle Lias. 



8, 9, 10. Lower Lias ; but little exposed. 



In Sir R. I. Murchison's little sketch of the ' Geology of Chel- 

 tenham/ the thickness of the Upper Lias is estimated at 60 or 

 70 feet ; and the following fossils were collected by him from a 

 road- side cutting near Sandy well Park : Ammonites bifrons, 

 A. undulatus, A. annulatus, Belemnites acutus, B. tubular is, B. 

 penicillatus, Inoceramus dubius, Plicatula spinosa, Trochus bisectus, 

 Area, Gervillia, Lucina, tModiola, Nucula, Nautilus, Pholadomya. 

 In the second and enlarged edition of the same work, the authors 



