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FOSSILS OF THE DILUVIUM. 
concretions often enclose single ammonites, and the larger ones which lie 
nearer the ironstone series, are filled with a variety of fossils. Remains 
of saurian animals have been found in all parts of the formation, hut are 
most abundant in the upper shale. 
FOSSILS OF THE DILUVIUM, 
IN THE EASTERN PART OF YORKSHIRE. 
The organic remains found in diluvium must be divided into 
two groups ; viz. those which, having been at some former period en- 
closed in solid strata, were transported from their original sites during a 
period of watery violence, and those which belonged to animals living 
immediately before that catastrophe. Of the former kinds, we find on 
the Yorkshire coast and in the vales of York and Cleveland a great 
variety, transported in different distances and in different directions. A 
considerable number of them are described in Mr. Kendall’s “ Catalogue 
of Scarborough Minerals and Fossils.” Amongst those derived from 
the mountain limestone of Yorkshire, we may notice a beautiful retepora 
and a millepora, both nondescript; tubipora strues, Linn.-, catenipora 
catenulata, (chain coral,) a beautiful favosites, and several species of 
astreea, caryophyllia, and turbinolia, besides spiriferae, productae, terebra- 
tulge, and crinoidal columns. From the coal districts of western York- 
shire, we have lepidodendra and variolariae. But the most abundant 
diluvial fossils on the coast, are those derived from the lias cliffs in 
the north ; for it is hardly too much to assert that three-fourths of 
the fossil shells of that stratum may be found in its bouldered fragments 
between Scarborough and Hornsea. Few of the numerous fossils of the 
oolitic formations occur in the diluvium, and no belemnites nor inocerami 
of the chalk have been drifted to the northward, though they are often 
found in the cliffs of Holderness. 
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