36 
W. Pengelly on the Bed Sandstones, 
examples, he detected in three cubic yards of the materials of 
which it consists no fewer than forty-five thousand fish teeth 
belonging to two species of the genus Acrodus, to say nothing of 
numerous remains of several other genera of fish, eight or nine 
genera of reptiles, and twenty-five teeth and vertebrae belonging to 
three or four genera of mammalia. 
Culverhole Point is the western termination of the famous 
landslip already alluded to ; and thence, for about a mile and a 
half eastward, the cliff is completely occupied with fallen Cretaceous 
matter. There can be no doubt, however, that the dip of the 
Trias must have carried it below the section before it reached the 
disturbed region. Rocks in situ are again visible at Charton Bay, 
where the lower part of the cliff consists of a fine series of drab, 
blue, and blushing Triassic marls, with rather large nodular masses 
of selenite ; and the upper of fossiliferous Lias. Unfortunately 
the refuse thrown out from the quarries which have been worked 
in the Lias, completely conceals the junction of the two forma- 
tions, but there is little doubt of a true mineral and stratigraphical 
passage or graduation of one into the other. At the western end 
of this section the strata dip at about 3° towards N. 54 W. (Mag.) ; 
this inclination, gradually diminishing, becomes reversed near the 
centre of the bay, and towards its eastern end is 3® in the 
direction S. 18^ E. 
Sir Henry De La Beche, in his Report, which was published 
in 1839, and, therefore written before the occurrence of the great 
land slip at the end of that year, says that in Charton Bay " the 
upper variegated beds are brought in for a short distance by a 
fault."! This is probably the fact, but it is impossible to deter- 
mine the point at present, so completely is the section concealed 
by the fallen matter. Be this as it may, the Triassic formation is 
finally lost sight of near the Humble Rocks, about two miles 
within the Devonshire border, 
* C. Mooro, F.G.S., in Kcport of Brit. Assoc., page 88, (1860). 
t " Eeport on Geology of Cornwall, tte.," page 209, (1839). 
