Columns
29
Packages
91
Units
520
Age
397.758–0 Ma
(397.76 Myr)
Area
99,288 km²
Max thickness
27,156 m

Fossils

Collections
453

References

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