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Columns
30
Packages
352
Units
1,233
Age
3,100–0 Ma
(3.1 Gyr)
Area
855,780 km²
Max thickness
30,575 m

Fossils

Collections
6,914

Prevalent taxa via PaleoBioDB

Mammalia

Reptilia (other)

Bivalvia

Angiospermae (unclassified)

Ornithischia

References

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