Lost cities / archaeology / ancient history

I have recently been fascinated by the notion of lost animals, species thought to be extinct being rediscovered.

Such as the Tasmanian tiger which has been spotted recently after going extinct in the 30's

Also many other species thought to be extinct many millions of years ago, being rediscovered in modern times and totally wigging the fuck out of biologists.

Are there any confirmed spottings of the Tasman tiger though? Other than the coelocanth, what other species are there?

I don't know about sightings, but a Tasmanian Tiger just posted:

Hippy, that is amazing