Urban fossils of Ottawa

Victoria Island

Location: natural outcrop
Rock: limestone
Age: Ordovician
Fossils: ichnofossils, gastropods and algae

Information and photographs: Quentin Gall. Dept. of Earth Sciences, University of Ottawa
More information: A Walking Guide - Ottawa’s Building and Monument Stones
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Middle Ordovician fossiliferous limestone (Lindsay Fm.) with bryozoa, crinoids and strophic brachiopod fragments

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Crinoid ossicles (circular sections) in biomicrite limestone

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Horizontal burrows in micritic limestone