UGA Stratigraphy Lab

The data is in the strata

• UGA
• Geology Dept.
• Stratigraphy Lab
• Steven Holland

• Fossils and Strata
  of the Type Cincinnatian
• Fossils
• Stratigraphy
• References
• Links to Other Cincinnatian Sites
• Acknowledgments
•  
• Edrioasteroidea

Cystaster

Cystaster stellatus
MUGM 29691
scale bar is 0.5 mm

Cystaster is characterized by its relatively small size, its discoidal to clavate theca, and its short, straight ambulacra.

Species

Cystaster granulatus Hall, 1871
Occurrence: Economy, Fairmount, Whitewater
Reference: Bell, 1976
Includes Cystaster ulrichi, Cystaster turgidus
Clavate theca; ambulacra extend beyond upper side;

Cystaster stellatus (Hall, 1866)
Occurrence: Point Pleasant, McMicken, Fairmount, Bellevue
Reference: Bell, 1976; Bell, 1979
Formerly Cincinnatidiscus stellatus, Hemicystites stellatus; Includes Cincinnatidiscus edenensis
Discoid theca; flat upper surface includes ambulacra

Comments or questions? Please contact Steven Holland at stratum@uga.edu

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