Oil shale
17 packages
23 units

12,817 km

2
≤ 1,600m thick
125 collections
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Primary Sources

  1. Paleobiology Database. 2015. https://paleobiodb.org.
  2. Childs, O.E. Correlation of stratigraphic units of North America; COSUNA. AAPG Bulletin 69:173-180. 1985.