Tasmanian Tiger
Here’s a site with films of the tasmanian tiger, the thylacine (Thylacinus cynocephalus). It was driven to extinction in the 1930’s.
There’s interest in sequencing the genome of the tasmanian devil with an eye toward eventual cloning. Reconstructing a genome of an extinct species is currently not technically feasible. So far they have been able to clone short DNA segments from preserved tissue.