The Ion Dragon is most likely based on the "Minokawa", which is a giant, dragon-like bird in Filipino mythology, specifically from the Bagobo tribe based in Western Mindanao.
Wyatt Russell, has cited the Ion Dragon as his favorite Titan of the show.
LT. Shaw has a patch on his left shoulder sleeve insignia that comes from the US 8th Army that was stationed in Korea. Interestingly it very closely matches the Logo of the Umbrella Corporation from the Resident Evil franchise's "Umbrella Corporation".
The Ion Dragon's head design was inspired by anglerfishes, and its wings by flying fishes' fins.
Two separate, patterned maps (that show the movements of the dragon) match perfectly. Scale is not taken into consideration at all. Whilst a fun discovery for the characters, it's improbable that the lines would match so perfectly.