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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.
Paper View: A Geology Paradigm Suffers a Paradox
August 7, 2009
A pair of geologists found a paradox in a paradigm. That paradigm is the belief that ancient ocean levels rose and fell in cycles as ice sheets retreated and advanced, and the cause of the cycles was periodic changes in earth’s orbit. They modeled this process and couldn’t get it to work. They couldn’t get […]