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Devonian Atlas of Ancient Life

Devonian Atlas of Ancient Life

All Species

Geology

About

Resources

All Species
Geology
About
Resources

Devonian Atlas of Ancient Life/
Stratigraphic Occurrences/
Bell Shale Formation/

Bell Shale Formation

Spiriferida

Mucrospirifer alpenensis

Mucrospirifer prolificus

Stauriida

Heliophyllum confluens

Heliophyllum halli

This material is based upon work supported by the National Science Foundation under Grant No. 2127427. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Material on this website is subject to a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license (CC BY-NC-SA 4.0) unless otherwise indicated.