>>41455819No it's not. Archeops is based on the archeopteryx, which is an extinct bird that retains many reptilian features (like teeth, scales, and a long tail).
The gen 8 fossils are based on the Bone Wars and early paleontology in general, which is why they're chimeras (two different fossils incorrectly believed to come from the same animal). This is also why they're Pokedex entries have ridiculous claims like Dracovish being able to run incredibly fast, but going extinct because it couldn't breath on land. They reflect the ideas early paleontologists had about dinosaurs and other prehistoric reptiles, that they were just big, slow, dumb lizards and were inherently inferior to modern species, which is what caused them to go extinct.