http://fdiland2k23drdjqmxgmnjmzb47s3ildy5wyh5t4gk2tgjo3yfdffyyd.onion/kemono/thread/2.html
For that matter, there was a shota board already, and it had a non-human thread too, although admittedly most of its content isn't really kemono, so I don't know if it's relevant, but anyway here it is. https://8chan.moe/sm/res/18494.html (if .moe doesn't load, try using .se)
I think you posted both on /c/ and /cm/ but I'm mostly interested in kemoshos, I don't know if the loli board(s) on 8chan have kemono threads too, sorry.