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.
3. Dockery, D.T. Stratigraphic Units of Mississippi. Mississippi Department of Environmental Quality. 2008. http://deq.state.ms.us/MDEQ.nsf/page/Geology_surface.