The Newer Pliocene Period in England

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Abstract
T he movements by which the conditions of sea and land have changed in England from the time when the Red Crag began to form appear to me to have been so continuous that the formations from this point onwards can be studied with advantage only as one geological group; and as these have all accumulated during one great movemeat of depression and reelevation, the Newer Pliocene period seems to me the most suitable term for the lapse of time which they mark. The commencement of this Crag ia England is marked by the accumulation of those beds of which a small remnant is preserved in the cliff at Walton Naze. During its progress the continuous destruction of the antecedent accumulations of the same formation, as well as of the beds of the Coralline Crag, furnished that peculiar mass of comminuted shell of which the successive portions of the formation are made up. The character of the beds, and the highly and often continuously oblique character of the bedding, with other evidence on which I do not stop here to dwell, indicate that nearly all that part of the formation to which the term Red Crag (as distinguished from the part represented by the Chillesford beds) has been applied was accumulated between high- and low-water marks, when the rise and fall of the tide was considerable. The Walton bed, as my fat;her has shown, is destitute of many species of Mollusca which occur in the Red Crag of the northern(or .

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