Temperature of the last interglacial based on δ$^{18}$O in mollusks
Résumé
$Strombus\ bubonius$ is a thermophilous marine gastropod which today lives only in the shallow waters of the Gulf of Guinea. This marine snail requires an annual average temperature of 25 °C to grow normally, but it also tolerates temperatures as low as 15 to 20°C in Senegal and as high as 31°C on the island of Bioko (Meco 1967, 1977). However, during the last interglacial period (LIP; between 115,000 and 135,000 yr BP, Bard et al. 1992) the habitat of $Strombus\ bubonius$ extended much farther to the north, and well preserved specimens can commonly be found in Pleistocene beaches from the Canary islands and Mediterranean coastline.