Sentence Examples

  • The formations older than the mesozoic are remarkably unfossiliferous, so that the determination of their age is frequently a matter of speculation, and in the following table the European equivalents of the pre-Karroo formations in many regions must be regarded as subject to considerable revision.
  • They are unfossiliferous, and in the absence of undoubted Cambrian, Ordovician and Silurian strata in Africa they may be regarded as of older date than any of these formations.
  • Some unfossiliferous conglomerates, sandstones and dolomites in South Africa and on the west coast are considered to belong to the Cambrian, Ordovician and Silurian formations, but merely from their occurrence beneath strata yielding Devonian fossils.
  • It is unfossiliferous except for a few obscure sheils obtained near the base.
  • Pondoland Cretaceous Series Uitenhage Series Stormberg Series Beaufort Series Ecca Series Dwyka Series Witteberg Series Bokkeveld Series Table Mountain Sandstone Series Includes several independent unfossiliferous formations of pre-Devonian age Cretaceous Carboniferous to Jurassic Devonian Archaean to Silurian(?) { Karroo System Cape System Pre-Cape Rocks Cretaceous System imperfect remains of plants (Spirophyton) are the only fossils, and these are not sufficient to determine if the beds belong to the Devonian or Carboniferous System.

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