346 PLEISTOCENE GEOLOGY OF THE THAMES VALLEY.
ft. in.
10. Blue clay, with shell of Anodon, etc., together with the
remains of mosses and other plants. The lower portion of
this bed contained a great deal of limonite. Nothing to .. 9
11. Finely laminated, fissile, and mottled clays, containing bones
of Cervus, Bos, etc., and shells of Anodon and Unio in places.
Many nodules or concretions of "race" occur throughout
this division. The bottom portion was saturated with
water. .. .. .. .. About 12 0
seen
The upper surface of the Laminated Clay series (No. 11)
and the under surface of the Blue Clay (No. 10) are seen to be
polished and striated—the striae running to the N.E. by E.
This feature evidently owes its origin to movement between the
two beds, which, of course, means slipping.
The fine sections formerly exposed in the great brickyards
which extended from Grays to Little Thurrock appear to have
been first described in detail by Prof. J. Morris in 1836 although
Buckland, Parkinson, and Trimmer undoubtedly had some
knowledge of them. Only one of these fine sections now
remains, viz., that at the Globe pit, but as these exposures
have so often been described, we have contented ourselves by
giving full reference to the literature concerning them in our
Bibliography of important works on the district.
V. PALAEONTOLOGY.
Grays Thurrock is famous for the fine series of organic
remains that have been obtained from the various sections
formerly exhibited in the district. In the present part of the
paper we have given a full list of the fossils and have described
the remains upon which the new records are based.
MAMMALIA.
(a.) List of Species—
Homo sapiens (Implements)
Macacus pliocenus, Owen.
Canis lupus, Linn.
,, vulpes, Linn.
Felis catus, Linn.
,, leo, Linn.
Hyaena crocuta, Erxl.
Lutra vulgaris, Erxl.