One of the most unusual things about Young Earth Creationism is its insistence on making things more complicated than they need to be. If you find a 170 million year old fossil, for instance, most people conclude that, since the fossil is 170 million years old, the Earth itself is at least 170 million years old.
Unless you’re a Young Earth creationist. In this case, you go through all sorts of mental gymnastics to try and mesh how a 170 million year old fossil can exist in a universe only 6,000 years old.
Take, for instance, the recent 170 million year old fossil found by the University of Edinburgh recently. The fossil, which is of an icththyosaur, swarm around in the warm ocean waters of Jurassic Scotland, preying on smaller animals. The name of the discovery, Dearcmhara shawcrossi, is a composite name; it’s named in honor of Brian Shawcross, who donated the fossils to the museum after discovering them in 1959, and after the Gaelic dearcmhara, which means “marine lizard.”
The name for the species, ichthyosaur, translates as “fish lizard” and D. shawcrossi represents both a new species and new genus, which makes the discovery especially exciting. They swam the oceans during the Mesozoic Era, the Age of Reptiles, appearing first in the Triassic period but finally dying out during the Cretaceous period.
Unless you’re a creationist, in which case they appeared 6,000 years ago when God created humanity (and then, according to Genesis 2, God created Adam, from which he created Eve), and swam until God got mad and drowned the world in a massive flood.
Of course, now you’re left explaining why a massive, worldwide flood for which there’s zero evidence would wipe out an under water species.