User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-184612-20150126055153/@comment-5043481-20150126080321

This order wierdness is not confined to these two though. Checked 3U, it goes jaggi, baggi, wroggi, then azuros, lagombi, volvidon. After this R Ludroth gets chucked in, then barroth, then gobul, rathian, rathalos, gigginox, lagiacrus. Breaking from the rest of the elder dragons, ceadeus gets chucked in the middle somewhere.

Yeah they're not really organised by type, more order of encountering. And that only loosly.