Guiana Shield is equally rich and 13,367 species of vascular plants have been found, approximately 40% of which is considered endemic. The shield is overlain by the largest expanse of tropical forest on any Precambrian shield area in the world. Guianan rain forest is similar in nature to Amazonian rain forest and known protected areas include the Iwokrama Forest of central Guyana, Kaieteur, Kanuku National Park of southern Guyana, the UNESCO World Heritage Site Central Suriname Nature Reserve of Suriname, the Guiana Amazonian Park in French Guiana and the Tumucumaque National Park in the Amapá State of Brazil. In Venezuela the forests
Skepi Creole Dutch Dutch creole language. In contrast to Berbice Creole Dutch, however, Skepi—which name derives from "Yskepi", the first Dutch name of the Essequibo River—was not actively spoken anymore during Robertson's fieldwork. The sample sentences and a Swadesh list compiled by Robertson were thus based on the memories of non-native speakers of the language still spoken by their parents or grandparents. After Robertson published his material, some older sources emerged. In the memoir of reverend Thomas Youd, who was a missionary in British Guiana, it is asserted that British missionaries learnt Skepi in the 1830s and that they used this language in