Table No. 2 illustrates the distribution of the species known in the Great Oolite and Cornbrash of Northamptonshire and Lincolnshire. The Great Oolite of Rutland and the Cornbrash of Stilton (Hunts) arranged in their geological horizons and according to localities. These two tables thus illustrate the distribution of the fauna of the Lower Oolites of Northamptonshire and Rutlandshire; Table No. 1 being devoted to range and correlation, and in which are tabulated 394 species, whereas Table No. 2 contains 354 known occurrences, through their distribution. Mr. Judd, in this able memoir, has so completely written the history of the area that no notes of special stratigraphical value can be added to this Appendix, and due attention to the table illustrating the variations of the Lower Oolites of the Midland district at page 6 in the memoir will enable the reader to understand, by comparison with the typical column headed "Geological Horizons," the sequence, distribution, and arrangement of the Rutlandshire and Northamptonshire deposits and fossils. The recent investigations into the true correlation of the Northern and Southern Oolitic groups, and especially those members of the lower series with the Lincolnshire Oolites and Northampton Sands of the Midland area, has resulted in clearly defining the true stratigraphical place of both horizons. Based upon superposition and on fossil data, both Mr. Sharp, of Northampton, and Mr. Beesley, of Banbury, through independent observations and well directed work over their respective districts, arrived at the same conclusions; and the careful and patient labour of Mr. Judd, as mapped in the field and now detailed in the present memoir, conclusively show, both on stratigraphical and palæontological grounds, the real relation of the Northampton Sands to the underlying Upper Lias Clays and the great Limestone of Lincolnshire above.* * Professor Morris in 1869 reconsidered his previous views upon the Lincolnshire Limestone, and assigned it to the age of the Inferior Oolite. |