Dinosaur track

The Dinosaur Track is a stand-alone fossil that can be donated to the museum in all games to date.

Donating Dinosaur Track in Animal Crossing
"Hoo, I say! Woo hoo! A fossilized footprint. Looks like some paleontology is afoot! Hoo hoo hoo! But truly, this is quite an earth-shaking find! I've never seen a specimen that can match it in beauty. The distinct three-toed foot tells us that this is the print of a theropod from... perhaps the Jurassic period, eh wot? It's impossible to discern anything more specific, but speculation is free, and a vital part of paleontology. Imagine a terrible carnivore stalking its prey... Its great weight pressing down into the earth... and... voila! History! Hoo, aren't I the blatherer! I beg your pardon, please! I do hope I didn't put you into a comatose state!"

Donating Dinosaur Track in Wild World
"Based on the shape, I can only suspect this is the footprint of the T-rex! Unlike with bones, we can see the foot's shape, size, texture, and more! Why, we can even deduce how fast it ran! Hardly just any old footprint, eh wot? Hoo! I'm frightfully sorry! The thought of such mighty feet agitates me to no end!"