Ludlovianadj.

/lʌdˈləʊvɪən/

Etymology: < Ludlovia, medieval Latin name of Ludlow, town in Salop (Shropshire) in the vicinity of which are exposures of this series: see -ian suffix.

Geology.

Of, pertaining to, or designating the latest of the three divisions of the Silurian, preceding the Downtonian (or the second latest, if the Silurian is taken to include the Downtonian). Also absol.

ΘΚΠ

the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Silurian > specific

Taconic1842

Ludlovian1855

wenlockian1855

Salopian1869

Downtonian1879

Valentian1879

Gotlandian1909

Salinan1909

1855 J. Phillips Man. Geol. vi. 104 This stage contains no less than seventy-eight species—the genera being mostly Wenlockian and Ludlovian.

1946 L. D. Stamp Britain's Struct. & Scenery xii. 109 Though various divisions of the Silurian have been proposed the old three-fold one into: (3) Ludlow Series or Ludlovian; (2) Wenlock Series or Wenlockian; (1) Llandovery Series or Valentian; has stood the test of time and is most convenient.

1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 121 There is..an almost perfect transition in the Welsh Borders from the Ludlovian into the Dittonian reflecting a gradually changing environment from marine to non-marine.

1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 120 Monograptus scanicus suggests a low Ludlovian age for these deltaic deposits.

This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2021).

单词	ludlovian
释义	Ludlovianadj. /lʌdˈləʊvɪən/ Etymology: < Ludlovia, medieval Latin name of Ludlow, town in Salop (Shropshire) in the vicinity of which are exposures of this series: see -ian suffix. Geology. Of, pertaining to, or designating the latest of the three divisions of the Silurian, preceding the Downtonian (or the second latest, if the Silurian is taken to include the Downtonian). Also absol. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > primary or Palaeozoic > Silurian > specific Taconic1842 Ludlovian1855 wenlockian1855 Salopian1869 Downtonian1879 Valentian1879 Gotlandian1909 Salinan1909 1855 J. Phillips Man. Geol. vi. 104 This stage contains no less than seventy-eight species—the genera being mostly Wenlockian and Ludlovian. 1946 L. D. Stamp Britain's Struct. & Scenery xii. 109 Though various divisions of the Silurian have been proposed the old three-fold one into: (3) Ludlow Series or Ludlovian; (2) Wenlock Series or Wenlockian; (1) Llandovery Series or Valentian; has stood the test of time and is most convenient. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 121 There is..an almost perfect transition in the Welsh Borders from the Ludlovian into the Dittonian reflecting a gradually changing environment from marine to non-marine. 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. 120 Monograptus scanicus suggests a low Ludlovian age for these deltaic deposits. This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2021). < adj.1855
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