. The Quarterly journal of the Geological Society of London. *-V 1 THE CORALLIAN ROCKS OF ENGLAND. 313 As we indicated at the commencement, it is not our object in thispaper to correlate the various deposits described with what may betheir representative portions of the argillaceous series; but, for thesake of indicating the possibility of such a correlation, we may recordthe fact that at Ampthill, the place after which Mr. Seeley hascalled the middle division of the clay, we have found in the debrisof the railway-cutting a well-marked spine of that most characte-ristic Corallian fossil Cidari
. The Quarterly journal of the Geological Society of London. *-V 1 THE CORALLIAN ROCKS OF ENGLAND. 313 As we indicated at the commencement, it is not our object in thispaper to correlate the various deposits described with what may betheir representative portions of the argillaceous series; but, for thesake of indicating the possibility of such a correlation, we may recordthe fact that at Ampthill, the place after which Mr. Seeley hascalled the middle division of the clay, we have found in the debrisof the railway-cutting a well-marked spine of that most characte-ristic Corallian fossil Cidaris jlorigemma, associated with Ammonitesplicatilis, Ostrea gregaria, and Serpula intestinalis. We do not propose either to enter into a complete discussion ofthe Els worth Rock of the same geologist, although we think thatit belongs to some portion of the time during which, elsewhere,Corallian rocks were being formed, and should probably be referredto a position analogous to that of the Lower Calcareous Grit. Thusmuch appears likely from the character of th
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
