| 11. | As Director he encouraged and strengthened paleontological and stratigraphic studies.
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| 12. | Its stratigraphic range is from the Upper Barramian to the Lower Albian.
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| 13. | The Caloris Basin is especially significant from a stratigraphic standpoint.
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| 14. | Most were unstratified, but 2 were actually stratigraphic in early layers.
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| 15. | All of the fossils occurred in the same stratigraphic layers.
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| 16. | Fieldwork was focused on identifying the New England stratigraphic sequence.
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| 17. | This age largely corresponds with stratigraphic evidence using 4 different dating methods.
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| 18. | Four stratigraphic levels were identified and a straight stone wall was discovered.
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| 19. | Stratigraphic terms are often confusing to geologists and non-geologists alike.
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| 20. | Stratigraphic terms are typically confusing to geologists and non-geologists alike.
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