Sphenia fragilis (IMAGE)
Caption
By examining fossilized clams, scientists found that a commonly used protocol hides the true extent of how species live and die through major extinctions. The clam above, Sphenia fragilis, belongs to a group that would previously be assumed to originate before the last great extinction, but the improved methodology suggests actually originated in a burst of diversification in the aftermath of the extinction.
Credit
Credit: Rüdiger Bieler, Field Museum, Chicago
Usage Restrictions
With credit
License
Original content