388 ME. S. S. Bl'CKMAX OX [vol. IxXYlii, 



Thichness in feet inches. 

 resting on lithographic stone — some of them are 

 in the lithographic stone. These ammonites are 

 mostly lying horizontal, bnt not in all cases. ^ 



At the same horizon as these ammonites a re- 

 rersed gastropod. Cirrus sp. cf. ' Turho hertlwJeti ? 

 D'Orbig-ny ' ]\Ioore.- Xantilus with squared Avhorls. 9" to 1' 2" 

 Layer 6. Yello-n-ish-brown shelly, more or less conglomeratic 

 bed of variable thickness, running up into the bed 

 above. '^ The variation in thickness seems to be 

 due to a bodily transported block of the Tefra- 

 rJiynchia-tliorncomhiensis Bed deposited in this 

 layer ; specimens of this species broken and whole ; 

 belemnites. This bed rests upon yellowish shales 

 containing peculiar micromorph Hildoceratid am- 

 monites (see p. 408) 1' l"to 8" 



7. Partly conglomerate, that is. broken up T. thorncom- 



biensis Bed redeposited, and partly lithogTaphic 

 stone. Small Dactyloid ammonites ; at the top 

 Rlujnchonella cf. moorei Davidson — a flatfish form, 

 subcircular. with coarse ribs, rectimarginate. This 

 is the horizon yielding T. tlioriicomhiensis in a 

 fallen block on the lowest platform imder the cliff, 

 and r/(ecjc?eZZ« on the weathered top-face 8 



8. Lithographic stone 3 



9. More or less conglomeratic with a pink tinge, some 



yellow sand-rock 5 



10. Lithographic stone 6 



Total 5 5 



Eemarks on tlie above section. — Fallen blocks gave a 

 tHckness of about 5 feet 6 inches., and a block measured i)i situ in 

 the cliff-face gave a similar thickness. Attached to the upper 

 surface of some blocks there is a certain portion of sandy deposit 

 ^vhicli really belongs to the sandy marls above (see diagram 3). 



The irony scale which forms the top of the Junction-Bed is 

 very noticeable in the fault-face, where this is formed by a partly 

 fomidered block (see diagram 5, p. 386). In this scale were found 

 fragments of Diimortieria, and there are slickensided belemnites. 

 From this scale on a block in the cliff I obtained a broken and 

 Avorn fragment of SLarpoceras of muJgravium type, and another 

 example came from this top irony scale of a fallen block. 



Blocks of the Junction -Bed on the beach o-ave the foUowino- in- 

 formation. Towards the base of blocks, especially where polished 

 by wave-action, the stone has a pink tinge very suggestive of the 

 pink stone (hifrons) of the Western Cliffs.^ Some matrix sug- 

 gestive of spinaiiim marlstone was seen, but no fossils. A large 

 Sarpoceras of muJgravium type was obtained from the base of a 

 block— the specimen was in fair condition, but was not lying 



^ From ' about middle of "Watton Bed,' which would be this layer 5, two 

 examples of Stolmorhynchia hothenhamptonensis (Walker) with a yellowish- 

 white matrix. 



-' VII, p. 210 & pL vi, figs. 7-8. 



■^ From a loose block examples of SfolmorhyncJiia hov.chardi Davidson, with 

 a yellow matrix (presumably this bed), were obtained. "^ I, 5, p. 64. 



