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Liverpool Geological Society
interesting results. These beds lie flat on vertical Devonian, Silurian, Ordovician, or Cambrian, and the included pebbles are recognizable fragments of the underlying rocks. Dr. Bagg considers the cherts to be Cambrian or Ordovician, and has identified seventeen genera and forty-five species of Foraminifera, many Sponges, some Kadiolaria, Bryozoa, etc. The Foraminifera are uncrushed, present perfect outlines, and reveal many genera (as Virgatwa and Bolivina) usually associated with more recentdoi:10.1017/s0016756800091032 fatcat:mpfz4ilj6nadzoey64l3g4bo4u