Serravallian: The Serravallian is, in the geologic timescale, an age or a stage in the middle Miocene Epoch/Series, which spans the time between 13.82 Ma and 11.63 Ma (million years ago). The Serravallian follows the Langhian and is ... (Earth) [100%] 2024-01-01 [Serravallian] [Serravallian first appearances]...
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