FIGURE
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1. |
Glycymeris sp. |
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Right valve of specimen (USNM 366500) from the Pamunkey River at the termination |
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of Va. 732, Hanover County, Va. (USGS Locality 26393); length 22.0 mm, height
21.0 |
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mm.
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2–4. |
Specimens from the Potomac River, 0.95 mi (1.53 km) below the mouth of Popes |
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Creek, Charles County, Md. (Stop 6) (USGS Locality 26397). |
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2. Cubitostrea sp. |
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Left valve of specimen (USNM 366501); length 13.8 mm, height 20.2 mm. |
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3. Cubitostrea sp. |
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Left valve of specimen (USNM 366502); length 11.8 mm, height 17.0 mm. |
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4. Cubitostrea sp. |
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Right valve of specimen (USNM 366503); length 12.0 mm, height 22.0 mm. |
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5. |
Nuculana sp. |
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Right valve of specimen (USNM 366504); length 4.14 mm, height 2.56 mm. |
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6. |
Macrocallista subimpressa (Conrad, 1848). |
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Left valve of specimen (USNM 366505); length 21.3 mm, height 13.9 mm. |
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7–9. |
Specimens from the Pamunkey River, just upstream of the old Newcastle Bridge, |
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Hanover County, Va. (USGS Locality 26405). |
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7. Corbula aldrichi Meyer, 1885. |
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Right valve of specimen (USNM 366506); length 10.0 mm, height 7.5 mm. |
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8. Venericardia ascia Rogers and Rogers, 1839. |
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Right valve of specimen (USNM 366507); length 41.4 mm, height 37.5 mm. |
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9. Venericardia ascia Rogers and Rogers, 1839. |
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Right valve of specimen (USNM 366508); length 62.6 mm, height 54.1 mm. |
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10. |
Lucina dartoni Clark, 1895. |
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Left valve of specimen (USNM 366509); length 6.1 mm, height 5.2 mm. |
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11. |
Lunatia sp. |
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Apertural view of specimen (USNM 366510); height 14.2 mm. |
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12. |
Turritella sp. |
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Apertural view of incomplete specimen (USNM 366511); height 12.2 mm. |
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13. |
Turritella sp. |
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Apertural view of incomplete specimen (USNM 366512); height 14.4 mm. |
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14. |
Cadulus sp. |
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Lateral view of nearly complete specimen (USNM 366513); height 4.93 mm |