not sure why you write dismissively it was a typo?aside from the fact that we don’t eat fish and milk because of a typo and not even one in the gemara – what gives you the right to think that? This is gemara…
I wasn’t dismissive. It’s just known than the Yerushalmi has a lot of typos, since it wasn’t (and isn’t) learned nearly as often as the Bavli. It also had fewer Kisvei Yad for the same reason. Especially when it quotes a Pasuk that doesn’t exist.