They were thought to have become completely extinct as a people by about 1400 or 1500.

Having a captive-breeding program could save P. livingstonii from going completely extinct.

By the early 20th century, the seal was regarded as commercially extinct, and perhaps completely extinct.

The indigenous oryx, which looks as if it were descended from the Unicorn, was completely extinct in the wild by 1972.

The Przewalski horse, which was completely extinct in the wild, has been reintroduced to the reserve.

By the end of the 19th century the Eastern elk was completely extinct.

Most indigenous species have been driven nearly or completely extinct.

It was at this point that a handful of producers decided to take action in order to prevent the wine industry from becoming completely extinct.

As to the volcano itself, it could not be doubted that it was completely extinct.

It is believed to be completely extinct since end of 18th century.