. The earth in past ages . THE LIAS. 127 moured saurian is found, which in many ways re- sembles the Iguanodon oi a iuter period, and is the type of a family with ver- tically serrated teeth aamed Scelidosauridae. The {< which arc r abundant ai multitude f ex- es of and t- gether with an Fig. 20.—Gtyphxaincurvm: Lias, with an involute mode of growth, known as the genus Gr\ -nail of the 1 logger fishermen. But with - tions the great multitude of the I [;ng wh - Limat Pecten% I iculay Afodiola% Tri- \tula : and the V \\\ shells Litto- rina and Pleun abundant. Speciesof the genus Amm give nam
. The earth in past ages . THE LIAS. 127 moured saurian is found, which in many ways re- sembles the Iguanodon oi a iuter period, and is the type of a family with ver- tically serrated teeth aamed Scelidosauridae. The {< which arc r abundant ai multitude f ex- es of and t- gether with an Fig. 20.—Gtyphxaincurvm: Lias, with an involute mode of growth, known as the genus Gr\ -nail of the 1 logger fishermen. But with - tions the great multitude of the I [;ng wh - Limat Pecten% I iculay Afodiola% Tri- \tula : and the V \\\ shells Litto- rina and Pleun abundant. Speciesof the genus Amm give nam ib-divisions es of the l. s ich as t 'ar- dinia and Hippopodium are only found in the Lias. There is no sharp separation to be LWn between the Lower and Middle Lias. The two beds are conformable to each other, although lish them, and there is some difference in their mineral character. The Mid- dle Lias comprises the marl stone, which forms an escarpment in the middle of England; and it also includes the ironstone series, which is well developed in the Cleveland district of Yorkshire,
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1902
