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单词 permo-pennsylvanian
释义

Permo-Pennsylvaniann.adj.

Brit. /ˌpəːməʊˌpɛns(ᵻ)lˈveɪnɪən/, U.S. /ˌpərmoʊˌpɛnsəlˈveɪnjən/
Origin: Formed within English, by compounding. Etymons: Permian adj., -o- connective, Pennsylvanian n.
Etymology: < Perm- (in Permian adj.) + -o- connective + Pennsylvanian n. Compare earlier Permo-Carboniferous n., Permo-Carboniferous adj.
Geology.
A. n.
The late Pennsylvanian and early Permian systems or periods considered jointly.The equivalent in the United States of Permo-Carboniferous.
ΘΚΠ
the world > the earth > structure of the earth > age or period > [adjective] > primary or Palaeozoic > Permo-carboniferous
Permo-Carboniferous1874
hercynian1895
Permo-Pennsylvanian1919
the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Permo-carboniferous
Permo-Carboniferous1874
Anthracolithic1891
Permo-Pennsylvanian1919
1919 Bot. Gaz. 68 93 In the Appalachian province where the Paleozoic record is unusually complete, we find..many red beds in the Permo-Pennsylvanian.
1937 Bull. Amer. Assoc. Petroleum Geologists 21 1252 Late Pennsylvanian and Permo-Pennsylvanian. Figure 2 represents a composite of late Pennsylvanian and early Permian time.
1992 Jrnl. Paleontol. 66 481 New materials from the Permo-Pennsylvanian of north-central New Mexico.
B. adj.
Of or relating to the Permo-Pennsylvanian.
ΚΠ
1923 Science 27 Apr. 505/1 (title) Evidence of Permo-Pennsylvanian glaciation in the Wichita Mountains.
1965 Bull. Amer. Assoc. Petroleum Geologists 49 1572/2 An early sequence of Permo-Pennsylvanian sediments accumulated in this bay.
1992 Philos. Trans. (Royal Soc.) B. 336 259 The atlas–axis complexes of the better-known genera of the Permo-Pennsylvanian tetrapod suborder Diadectomorpha are described.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
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n.adj.1919
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