NOTES ON THE LIAS IN THE NEIGHBOURHOOD OP EADSTOCK. 175 



Gryphea Macculloclii. The three divisions of (f ) may be considered 

 to represent the Earicostatus zone. We thus have had four zones 

 of the L. Lias represented in this section. 



Bed (e,) we consider, belongs to the M. Lias. It is formed of 

 two bands, which form the top of the quarry, as seen at present. 

 The stone is grey, but with admixture of the grains or shots of 

 yellow iron-oxide, which is so common in the M. Lias here. We 

 have found Am. armatus here, which is usually reckoned charac- 

 teristic of the base of the M, Lias. "We have also found A. 

 raricoatatus, but this may probably be a derived fossil. The base 

 of the bed is partly conglomeratic, apparently, having phosphate 

 nodules which have also, seemingly, been worked up again. We 

 shall have to note this again. This bed has also yielded to us an 

 Ammonite which we do not happen to have found in situ elsewhere. 

 It has a keel like A. Guihalianus, D'Orb. ; and the ribs have also 

 the character of that species, but it has a far narrower umbilicus. 

 We have ventured to identify it with A. Oppeli, Schloen. The 

 keel does not show on the internal cast. We have two imperfect 

 specimens : one is seven inches in diameter. The lobes and 

 saddles, as far as preserved, seem to agree with the type. We 

 also found here a minute Discina, not ^ inch diameter. 



We do not attempt to follow any topographical order in one 

 visit to the sections, but are taking now quarries which show us 

 continually ascending beds. After seeing the whole series we 

 shall then go to sections, which will take us through many of 

 the same beds again, but hereby we shall get more complete 

 information as to the distribution of species in the various 

 beds. 



E-etracing, then, our steps somewhat towards Kadstock by a 

 road which leads to Clan Down, we soon arrive at a quarry below 

 the coal-pit on Clan Down. 



In this quarry we have unmistakable Middle Lias. It lies 

 upon the Spiriferina clay, the top beds of the last ssction being 

 absent here. Bed (e) which we call the Armatus zone or base 

 of the Middle Lias, is noticeable again for containing phosphatic 



