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Plot Diversity Curves
Select Grouping Type:
Class
Order
Select Fossil Grouping:
All
Archaeocyatha
Calcarea
Cribricyathia
Demospongea
Demospongiae
Heteractinida
Hexactinellida
Radiocyatha
Stromatoporoidea
Uncertain
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Note: There are 3 fossils older than 750 Ma not shown on the following charts
