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BIOEVENTS
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BIOSTRATIGRAPHY
CONIACIAN/SANTONIAN BOUNDARY
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OLAZAGUTIA
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PALEONTOLOGY
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SEAFORD HEAD
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SOUTHERN ENGLAND
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Santonian
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Texas
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UPPER CONIACIAN
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US WESTERN INTERIOR
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ammonites
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calcareous nannofossils
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carbon isotopes
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foraminifera
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inoceramid bivalves
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