Rupelianadj.n.
/rʊˈpiːlɪən/, U.S. /ruˈpiljən/, /ruˈpiliən/ Geology.
A. adj.
Designating the lower (older) stage of the Oligocene series, exemplified by certain clays and shales in Belgium and Germany; of or relating to this stage.
ΘΚΠ
the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > tertiary or Cenozoic > Oligocene spec.
Rupelian1852
Tongrian1883
Stampian1893
1852 Jrnl. Geol. Soc. 8 296 They [sc. shells] are referred by M. Dumont to part of his Rupelian system.
1883 Science 2 16/1 The oligocene system shows two principal divisions (tongrian, rupelian), which stretch across the lower part of the river Escaut.
1922 Univ. Calif. Publ. Geol. Sci. 13 69 Several teeth and other remains of a marine mammal were found..in Rupelian clay on the bed of the Meuse River.
1965 Jrnl. Paleontol. 39 1142/2 Previously this species had been reported from strata of Rupelian and Chattian age of Germany.
2006 K. D. Rose Beginning Age Mammals i. 15/1 The principal faunal turnover at the Grande Coupure took place between the Priabonian and Rupelian Stages.
B. n.
The Rupelian stage; the strata collectively dating from this time.
ΚΠ
1855 C. Lyell Man. Elem. Geol. (ed. 5) xv. 189 (table) Upper Eocene... Upper Limburg beds.—Rupelian of Dumont.
1923 Sci. Monthly Feb. 121 A shallowing or filling of parts of the basin results in the appearance of sediments representing brackish and fresh water which follow those of the Rupelian.
2002 Jrnl. Vertebr. Paleontol. 22 667/2 The specimen, a dissociated skeleton from the Rupelian of France, was assigned to Frigidafons brodkorbi, a new genus and species of the Procellariidae.
This entry has been updated (OED Third Edition, March 2011; most recently modified version published online March 2022).
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adj.n.1852