| | P | Newer:--English Forest-Bed Group; Red and | On the Atlantic border | | | l | Norwich Crag; Amstelian and Scaldesian | represented by the marine | | | i | groups of Belgium and Holland; Sicilian | Floridian series; in the | | | o | and Astian of France and Italy. | interior by a subaerial and | | | c | Older:--English Coralline Crag; Diestian | lacustrine series; and on the | | | e | of Belgium; Plaisancian of southern | Pacific border by the thick | | | n | France and Italy. | marine series of San Francisco.| | | e | | | | | . | | | | +---+-------------------------------------------+----------------------------------+ | | M | Wanting in Britain; well developed in | Represented in the Eastern States| | | i | France, S. E. Europe and Italy; | by a marine series (Yorktown or| | C | o | divisible into the following groups in | Chesapeake, Chipola and | | a | c | descending order: (1) Pontian; (2) | Chattahoochee groups), and in | | i | e | Sarmatian; (3) Tortonian; (4) Helvetian;| the interior by the lacustrine | | n | n | (5) Langhian (Burdigalian). | Loup Fork (Nebraska), Deep | | o | e | | River, and John Day groups. | | z | . | | | | o +---+-------------------------------------------+----------------------------------+ | i | | In Britain the "fluvio-marine series" of | On the Atlantic border no | | c | O | the Isle of Wight; also the volcanic | equivalents have been | | | l | plateaux of Antrim and Inner Hebrides | satisfactorily recognised, but | | o | i | and those of the Faeroe Isles and | on the Pacific side there are | | r | g | Iceland. In continental Europe the | marine deposits in N. W. | | | o | following subdivisions have been | Oregon, which may represent | | T | c | established in descending order: (1) | this division. In the interior | | e | e | Aquitanian, (2) Stampian (Rupelian), | the equivalent is believed to | | r | n | (3) Tongrain (Sannoisian). | be the fresh-water White River | | t | e | | series, including (1) | | i | . | | _Protoceras_ beds, (2) | | a | | | _Oreodon_ beds, and (3) | | r | | | _Titanothervum_ beds. |