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Eosurcula Moorei
''Eosurcula'' is an extinct genus of gastropod from the Eocene of Asia, Europe, and North America. Species * † ''Eosurcula capayana'' Vokes 1939 * † ''Eosurcula cohni'' Dickerson 1915 * † ''Eosurcula inconstans'' Cooper 1894 * † ''Eosurcula moorei'' Gabb, 1860 from Bartonian in Texas * † ''Eosurcula praeattenuata'' Gabb 1868 * † ''Eosurcula stena'' (Edwards, 1857) from Hampshire Original description Genus ''Eosurcula'' was originally described by Thomas Lincoln Casey (entomologist), Thomas Lincoln Casey in 1904. Casey's original text reads as follows: References This article incorporates public domain text from reference. * ''Fossils'' (Smithsonian Handbooks) by David Ward (Page 131) * P. Jeffery and S. Tracey. 1997. The Early Eocene London Clay Formation mollusc fauna of the former Bursledon Brickworks, Lower Swanwick, Hampshire. Tertiary Research 17(3-4):75-137 * R. L. Squires. 2001. Additions to the Eocene megafossil fauna of the Llajas Formation, Simi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Eos, Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isoto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
