The Cordell Formation is a geologic formation in Michigan. It preserves fossils dating back to the Silurian period.[2]

References

  1. ^ "Michigan Basin Stratigraphy on ResearchGate".
  2. ^ "Middle Silurian paleoecology; The Raber Fossil Beds, Chippewa County, Michigan, on Geological Society of America Centennial Field Guide—North-Central Section, 1987" (PDF).


Allikas: Https://en.wikipedia.org/wiki/Cordell_Formation
No tags for this post.