Aptianadj.n.

/ˈaptɪən/

Etymology: < place-name Apt (Vaucluse, France) + -ian suffix.

Geology.

Epithet of a division of the Lower Cretaceous formation in France and Belgium; belonging to or found in this, as a fossil.

ΚΠ

1863 J. D. Dana Man. Geol. iii. iii. 480 The subdivisions of the Cretaceous are variously named in different parts of Europe. Lower Cretaceous.—Superior Neocomian of D'Orbigny (the Wealden being the inferior); also his Aptian.

1863 J. D. Dana Man. Geol. 774/2 Aptian group.

1885 A. Geikie Geol. (ed. 2) 831 In northern France the Aptian stage is chiefly clay.

1921 Brit. Mus. Return 151 Aptian fossils from Whale's Head.

This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).

单词	aptian
释义	Aptianadj.n. /ˈaptɪən/ Etymology: < place-name Apt (Vaucluse, France) + -ian suffix. Geology. Epithet of a division of the Lower Cretaceous formation in France and Belgium; belonging to or found in this, as a fossil. ΚΠ 1863 J. D. Dana Man. Geol. iii. iii. 480 The subdivisions of the Cretaceous are variously named in different parts of Europe. Lower Cretaceous.—Superior Neocomian of D'Orbigny (the Wealden being the inferior); also his Aptian. 1863 J. D. Dana Man. Geol. 774/2 Aptian group. 1885 A. Geikie Geol. (ed. 2) 831 In northern France the Aptian stage is chiefly clay. 1921 Brit. Mus. Return 151 Aptian fossils from Whale's Head. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018). < adj.n.1863
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