data&figures
Data & Figures
contents
Contents
georef
GeoRef
supplements
Supplements
references
References
related
Related
1 January 1988
Index Terms/Descriptors
- Alexander County Illinois
- Cyclocystoidea
- Echinodermata
- Echinozoa
- functional morphology
- habitat
- Illinois
- Invertebrata
- morphology
- new taxa
- Ordovician
- paleontology
- Paleozoic
- taxonomy
- United States
- Upper Ordovician
- southern Illinois
- Thebes Quadrangle
- Scales Formation
- Orchard Creek Shale Member
- Hystrichopsydrax sandersi
- Euhydrodiskoo diktyotos
Latitude & Longitude
