Living fossils of the world - Animals in the Habitats, and Biodiversity

Classified animal picture guide. Highlighting the link of species shows the images, and clicking a link shows Evolutionary Tree.
It is the living fossil that the fossil of a species has same appearance as the extant species. The explanation in branckets is the age evolved. The time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.