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Contact: Beth King
kingb@si.edu
703-787-3770 x8216
Smithsonian Tropical Research Institute
Caption: Scanning electron microscope photos of these minutely sculptured cupuladriid bryozoan fossils tell paleontologists whether the animal reproduced sexually or clonally. Top: Sexual form-- frontal and basal views Bottom: Clonal form--frontal and basal views
Credit: Aaron O'Dea
Usage Restrictions: Credit: Aaron O'Dea
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