A few nice extinct animals images I found:
Galapagos tortoise (Chelonoidis nigra sp.) on Floreana, Galapagos Islands
Image by Dallas Krentzel
The tortoises of the island of Floreana went extinct after human invasion (Floreana is probably the most ecologically devastated of the islands in the archipelago, which was sad to see in a lot of ways), but recently a population of tortoises has been reintroduced from other islands (hence the species/subspecies status is uncertain in these photos, as with those I took on Isabela, also re-introduced individuals). This individual was given some food by the local conservation group, where these tortoises are being protected and reared.
Image by pesbo
the antlers came from a deer extinct for 10,000 years and was found in a bog. hufe animal
Image by ChrissyJ
A nearly extinct subspecies of leopard