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1 February 1988
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Index Terms/Descriptors
- Anthozoa
- biostratigraphy
- borings
- carbonate rocks
- Cincinnatian
- Cnidaria
- Coelenterata
- deposition
- dolostone
- environment
- high-energy environment
- Illinois
- Invertebrata
- Iowa
- limestone
- Maquoketa Formation
- Maysvillian
- Minnesota
- morphology
- Ordovician
- orientation
- paleoecology
- paleoenvironment
- Paleozoic
- reconstruction
- Richmondian
- Rugosa
- sedimentary rocks
- sedimentation
- shallow-water environment
- stratigraphy
- United States
- Upper Ordovician
- Zoantharia
- northeastern Iowa
- northwestern Illinois
- southeastern Minnesota
- Elgin Member
Latitude & Longitude
