Rare fossils provide more detailed picture of biodiversity during Middle Ordovician

A clutch of marine fossil specimens unearthed in northern Portugal that lived between 470 and 459 million years ago is filling a gap in understanding evolution during the Middle Ordovician period.<br />
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The discovery, explained in a new paper just p …
Ingeniería
Enlace: Rare fossils provide more detailed picture of biodiversity during Middle Ordovician