Random tokens in caves

[(PSN)Dr_Bruiser]

I have only spent a couple hours with the new update and tried sampling a variety of activities to get a taste for everything.  As I was exploring a couple caves looking for quiet fishing hotspots, I was surprised to find a random assortment of family tokens laying around the caves as marked loot.  They glow quite brightly and really stood out, even in the very colorful infested caves.  One small cave contained exactly one of each (not Grandmother, and maybe not Otak now that I think of it), while a second larger cave yielded all but a Son token (though I didn't exhaustively explore the whole cave).  I have read quite a few threads on here and some of the developing wiki pages, but hadn't seen mention of finding tokens this way anywhere.  Given the difficulty in finding Son tokens especially that many are having, this seemed surprising to me. Can anyone confirm whether this is a reliable farm?  If so, a limbo catabomb or stealth frame with looter Carrier and lots of loot radar would make this a relatively easy way to get a modest number of assorted tokens.

[(XBOX)Greenguy5000]

this is likely as reliable as farming toroids in caves, aka not very, its nice if you just need 1 or 2 but not 10

[(PSN)Dr_Bruiser]

Except my limited experience in Deimos is that I was finding multiple tokens in each cave, while I literally don't think I have ever found a random toroid in Orb Vallis caves.  If it was just mother tokens, it wouldn't be worth pursuing, but I got (IIRC) two daughters, a son, two fathers, two mothers in 20 minutes while just exploring randomly and fishing.  If they spawn consistently in caves, this could be a low-stress (but slow) farm, which I would gladly take.

[(XBOX)Greenguy5000]

toroids in caves are in out of the way places and seemingly always in a bundle of 3