|Season 3, Episode 91|
|Air date||December 5, 1992|
|Written by||Tad Stones, Dev Ross|
|Story Editor||Tad Stones|
Darkwing is asked to investigate a mysterious museum find; Darkwing himself encased in amber. With Quackerjack's timetop, Darkwing, arrives in the future prehistory.
- This was the last epsiode of the series. A 4th season was never put into production.
- The only two characters to crossover from Ducktales are Launchpad McQuack and Fenton Crackshell/GizmoDuck, however Scrooge McDuck makes a small appearance on a billboard in the episode "Tiff Of The Titans"
- Darkwing Duck is the only character to appear in every single episode.
- This episode not only deals with fossils and time travel but is also a part of the Predestination Paradox, a paradox that exists when a time traveller is caught in a loop of events that "predestines" him/her to travel back in time.
Last episode of Darkwing Duck.
Darkwing: I am the limestone that petrifies your bones.