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Crinoid Pigment: 240 Million Years and No Evolution
February 19, 2015
Pigments from crinoids fossilized in early Mesozoic strata are identical to modern counterparts.
Intact Biomolecules Claimed to Be 350 Million Years Old
February 22, 2013
The oldest recovered biomolecules have been found in crinoid fossils – but are they really that old?