[stumped]

i think you have to comine the info on the device with the widipedia etc stuff to make sense of it.
amazon "generations" is another thing entirely and another source of confusion. as is "years"
so for instance the HDX comes as 3rd gen and 4th gen but that does not imply OS3 and OS 4. every time they reworked a device the generation number went up by 1 ( so the basic kindle is now at gen 8 ? ) but then the device gets whatever version of Fire OS was current at that time.
I have gone back over this a few times, to sort out matching covers, or to plan purchases/sales. Another example: the Fire HD 8 is up to generation 7 at least, but only runs OS 5 at best.
& even the oldest amazon OS were "based on" android, says wikipedia

i don't know any single source for a table that has a full set of columns, which would have to include
MODEL NAME, GENERATION, YEAR, FIRE OS version, (based on) ANDROID Version.

i only collated stuff for devices i own/used to own/ plan to own

if the device says 7.5.1 or 8.5.1 the full story is that has an amazon OS with that version number which is based on Android 4.03. it's the 4.03 number that matters which looking at whether some sideloaded google app is going to work or not. anything that needs Kitkat or later, for example, will not work
e.g. BBC iplayer for kids needs android 4.1 or later, so will not run on Kindle Fire HD8.9
There was a recent discussion re getting Hulu to work on that model, and that does not work for the same reason