| 1. | Lake deposits formed by glaciation, including deep glacial scouring, are abundant.
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| 2. | The genus is known primarily from the Early Eocene, Wasatchian stage, Fossil Lake deposits.
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| 3. | Important lake deposits, predominantly clay, were thus laid down in the Monongahela River basin.
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| 4. | It is known from what are interpreted as lake deposits.
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| 5. | The presence of " Altenglanerpeton " in a lake deposit suggests that it was aquatic.
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| 6. | Some tuffs found in Escara lake deposits have been dated to about 1.87 million years ago.
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| 7. | This program discovered the Walsh Lake deposit.
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| 8. | It also occurs in the middle Eocene lake deposits of Washington and British Columbia [ 1 ].
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| 9. | This situation prevailed for several hundred years as evidenced by lake deposits beneath and around Llangorse Lake.
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| 10. | The Rabbit Lake deposit was discovered in 1968 and production started in 1975 using open-pit mining methods.
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