LOWKIt LIAS: TOLDEN HILLS. 81 
At Mr. Zachiuiah Seymour's Quarry at Street, the thickness of the beds 
measured, was 17 feet 11 inches from the Yellow Stone to the New Found 
Out, the depth of the quarry hein.? about 19 feet. The details of the beds are 
almost identical with those noted above. From this quarry a specimen of 
Blue Ciog, polished, was presented to the Museum of Practical Geole^v, by 
Mr. Seymour. The New Found Out is here 8 inches in thickness. 
At Street many fine examples of Ichthyosaurus and Plesiosaurus 
have been obtained, and Thomas Hawkins, who resided at 
Sharpli am Park, was furnished with much of the material for his 
illustrated work on the " Great Sea Dragon"?." 
That the beds have proved so rich in Saurian-remains, is no 
doubt partly due to the extensive workings for stone, but it is 
partly due to the energy of: local observers. 
Tn addition to. the species mentioned, Plesiosaurus (Thauma- 
tosaurus) megacephalus and P. macrocephalus have been obtained 
in the neighbourhood;* and a few years ago Mr. Alfred Gillett, of 
Overleigh, procured a very perfect specimen of Ichthyosaurus 
tenuirostris, now in the British Museum, and lately described and 
figured. t Mr. Gillett has also obtained a number of Fish- remains, 
including species of Ambli/unis, Dapcdius^ Lcptolepis, and Pho- 
Hdophorus. Among other fossils J obtained specimens of Area, 
Astarte, Cardinia, Cardium, Gryph&a arcuata (small), Lima, 
Pleuromt/a, Waldheimia, and TJiccosmilia. 
With regard to Corals, both Heterastrcea (Isaatrcea) latim&an- 
droidea ( /, Murchisoni of Wright) and II. ^Scptastrcea] Haimci 
have been recorded ; the occurrence of the latter species hns been 
considered erroneous ; | hut Dr. Wright states that he extracted 
it from the clay at Street, in situ.^ 
Evidence of the Zone of Ammonites angulatus has been obtained 
in the northern portion of the village of Street. Excavations 
lately made (1891) at Mead's Batch, have opened up beds of clay 
with bands of limestone, from which the following fossils have 
been obtained by Mr. Gillett and Dr. G. J. Hinde : Ammonite* 
angulaius, A. Johnstoni, booklets of Belcmnitcs, Gryphcea arcuoti: 
(small), Gresslya galathca, Unicardium cardioides, Rhynchonclla 
calcicosta, and Waldhcimia perforata. 
The Lower Lias limestones, and the Rhtetic Beds have been 
\vell exposed in the cutting of the Great Western railway at 
Dunball, near Puriton, and in the adjoining Cement and Lime 
Works belonging to Messrs. John Board & Co. The quarry 
shows the following beds: 
* See Huxley, Quart. Jouni. Geol. See. vol. xvi. p. 91. 
f K. Lydekker, Geol. Mag., 1891, p. 289. 
j Tomes, Q.uart. Journ. Geol. Soc., vol. xxxiv. p. 183; Hinde, Ibid., vol. xliv. 
p. 224 ; and Duncan, Ibid., vol. xxiii. p. 18 ; Supp. Foss. Corals, Pal. Soc., 1'arf iv. 
p. 5. 
Proc. Cotteswold Club, vol. iv. p. 147. 
E 70859. 
