Urban fossils of Ottawa

1 Rideau Street (Chateau Laurier Hotel)

Indiana Limestone
: façade of building
Rock: limestone
Age: Carboniferous
Fossils: crinoids

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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Most of the Fairmont Chateau Laurier Hotel (1908-1912) façade is Mississippian Indiana fossiliferous limestone

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Tan colour bioclastic limestone with abundant crinoid ossicles (circular section with five-sided, star symmetry)