| 释义 |
Palæocene, a. Geol.|ˈpæliːəʊ-, ˈpeɪliːəʊsiːn|
Also (chiefly U.S.) Paleo-.
[ad. F. paléocène (W. Ph. Schimper Traité de Paléont. végétale (1874) III. 680), f. paléo- palæo-, paleo + Gr. καινός new, recent (cf. eocene, oligocene, etc.).]
Of, pertaining to, or designating the lowest series of the Tertiary system, lying below the Eocene and comprising the Montian and perhaps the Danian stages; (formerly often not recognized as a distinct series but incorporated in the Eocene). Also absol.
1877Proc. Geol. Soc. XXXIII. 83 An attempt has been made to establish a zone intermediate between the European Cretaceous and Eocene, under the title of Palæocene. 1877Q. Jrnl. Geol. Soc. XXXIII. Proc. 83 The Palæocene and other zones of European Eocene plant-bearing strata. 1899Nature 26 Jan. 308/1 The Palæocene Volga Sea must have been a large sea extending northwards up the present lower Volga, and westwards as far as the meridian of Penza. 1921A. W. Grabau Textbk. Geol. II. xlv. 782 The Palæocene is not always recognized by American geologists, who class it as Lower or Basal Eocene. 1949R. C. Moore Introd. Hist. Geol. xvii. 399 In Europe and in North America, the Tertiary System is recognized as containing main divisions that in upward order are named Paleocene, Eocene, Oligocene, Miocene, and Pliocene. 1957Dunbar & Rodgers Princ. Stratigr. xvii. 298/1 The Paleocene is commonly not separated from the Eocene in Great Britain and France. 1965Kay & Colbert Stratigr. & Life Hist. xxiv. 617 There was an evolutionary explosion of mammals..with the advent of the Paleocene Epoch. 1969[see Montian a.]. |