Josiane Dalcourt stands beside a 125,000 year-old exposed relic coral reef. Pieces from this reef have been found in near-by archaeological sites where the site inhabitants used sharpened pieces of coral as tools.
 Relic Coral Reef
Image courtesy of Amy Gusick, Sea of Cortez 2110 Expedition. Download larger version (jpg, 5.4 MB).

Josiane Dalcourt stands beside a 125,000 year-old exposed relic coral reef. Pieces from this reef have been found in near-by archaeological sites where the site inhabitants used sharpened pieces of coral as tools.