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EOCENE (Gr. ftis, dawn, KCUPO?, recent), in geology, the name suggested by Sir C. Lyell in 1833 for the lower subdivision of the rocks of the Tertiary Era. The term was intended to convey the idea that this was the period which saw the dawn of the recent or ex ...

... hich is often glauconitic and conglomeratic at the base. Denudation in earliest Eocene times has produced flint gravels above the chalk, and an ancient stream deposit of chalk pebbles occurs at Ballycastle. The volcanic fissures that allowed of the upwelling o ...

... kill. These rocks, which incluH • some highly siliceous lavas, form part of the Eocene series that is so conspicuously displayed above Carlingford in Co. Louth. Lead-veins have been worked in various parts of the county from time to time. Industries. — The soi ...

... name Hippoidea is employed. All four groups were closely connected in the Lower Eocene, so that exact definition is almost impossible. In the Hippoidea there is generally the full series of 44 teeth, but the first premolar is often deciduous or wanting in the ...

... (1865); Physiograbhie der AfedicinatPflanien (1862): A Monograph of the Bntisn Eocene Flora (with J. Starkie Gardner), Palaeontograph. Soc. vol. i. (Filices, 1879i - •

... vidence of leaf-remains, appears to have been represented by several species in Eocene times. The leaves are leathery in texture, hang obliquely or vertically, and are studded with glands which contain a fragrant volatile oil. The petals cohere to form a cap1 ...

... the Alpine system of Suess, perhaps began at an earlier date, but it was in the Eocene and Miocene periods that the chief part of the elevation took place. Arms of the sea extended up the valley of the Rhone and around the northern margin of the Alps, and also ...

... Llano Estacado are brownish and reddish loams derived from the sediments of a Neocene lake. Agriculture. — The total farm acreage was 125,807,017 acres in 1900, the total number of farms1 being 351,085, their average acreage 358-3 acres, 84-9 per cent, being ...

... roup of mammals of uncertain position, typified by Tillotherium from the Middle Eocene of Wyoming, (From Marsh.) Skull of Tillotherium fodiens. (} nat. size.) and perhaps including Esthonyx from the Lower Eocene of the same district, and other genera from the ...

... before reaching the Rio Grande, a low and thoroughly dissected cuesta of sandy Eocene strata; and this is followed by the Coast Prairie, a very young plain, with a seaward slope of less than 2 ft. in a mile, its smooth surface interrupted only by the still mo ...