. The earth in past ages. Geology, Stratigraphic; Earth sciences. THE OOLITES. 137 neighbouring sea. The reptiles of this age, Omo- saurus and Pliosaurusy are like those of the Oxford it a great Megalosaurian, named StrepUh Spondylus% has also been found at Weymouth and Malton in Yorkshire. The Kimeridge Clay.—The reef of limestone at Upware appears to be a dividing point for the Kimeridge clay, which comes next in vertical suc- cession. In Cambridgeshire it is about 40 feet thick, but thickens south-west to Dorsetshire to more than 600 feet thick, and its northern thick* ening to Yorkshire is
. The earth in past ages. Geology, Stratigraphic; Earth sciences. THE OOLITES. 137 neighbouring sea. The reptiles of this age, Omo- saurus and Pliosaurusy are like those of the Oxford it a great Megalosaurian, named StrepUh Spondylus% has also been found at Weymouth and Malton in Yorkshire. The Kimeridge Clay.—The reef of limestone at Upware appears to be a dividing point for the Kimeridge clay, which comes next in vertical suc- cession. In Cambridgeshire it is about 40 feet thick, but thickens south-west to Dorsetshire to more than 600 feet thick, and its northern thick* ening to Yorkshire is a IS great. This clay contains inflammable beds known as Kimeridge 1., which divide into thin sheets like paper, and are full of marine fossils. In 11 lire the clay fuel, and has been used in making paraffin candles, and to produ< »r illumina- ShoUverHifl. FlO, 84.—Section dl n of strata east of Oxford. tion of the neighbouring villages. These clays full of be< QS of earthy lime- ,nurd septaria, which are each 2 or 3 feet in diameter. The oldest known representative of the Iguan- odon is found in this clay at Cumnor. And be- tween Ely in Cambridgeshire and Swindon many fossil reptiles are found, such as Teleosaurian crocodiles, peculiar turtles and Ichthyosaurs. Colymbosaurus is a long necked Plesiosaur with single heads to the neck ribs, distinguished by the massivene^s of its arm bones, and by having three. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Seeley, H. G. New York, Review of Reviews Co.
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