Screen 26: Arcoidea, Limopsoidea
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| Dallarca idonea (37 mm), colno 48212 St. Marys Formation, Little Cove Point Member |
Dallarca staminea (34 mm), colno 35320 Calvert Formation |
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| Dallarca subrostrata (50 mm), colno 35318 Calvert Formation |
Glycymeris parilis (74 mm), colno 54920 Calvert Formation |
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