Suffolk cragn. a Pliocene formation occurring in Suffolk (see quot. 1852).
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the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > tertiary or Cenozoic > Pliocene spec.
Norfolk Crag1846
Norwich Crag1850
Suffolk crag1852
1852 C. LyellMan. Elem. Geol. (ed. 4) 162 The Suffolk crag is divisible into two masses, the upper of which has been termed the Red, and the lower the Coralline Crag.