The Changing Globe -- The Changing Face of the Earth -- Vendian Times -- Early Cambrian Times -- Late Cambrian Times -- Ordovician Times -- Silurian Times -- Devonian Times -- Carboniferous Times -- ...
Fossil seal remains from Richmond, Virginia, first reported by Wyman in 1850, and named Phoca wymani by Leidy in 1853, have been neglected and unjustifiably regarded as cetacean by most subsequent ...
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