Which pokemon didn't evolve from Mew, aside from the obvious ones?
By 'obvious ones', I mean these:
>Arceus + the Unown
>the Creation Trio
>the Lake Guardians
>the Ultra Beasts + Necrozma + Eternatus + Cosmog line
>Regigas + The Legendary Titans
>Deoxys
>All artificial mons made by man (though you could argue they're indirectly related because made by humans who evolved from pokemon who evolved from Mew)

I've heard that the Super-Ancients rose spontaneously from the magma/oceans/ozone layer, but I'm not sure if that's just a fan-theory or whatever. There was also that thing about the Tao trio's Original Dragon coming down from space in a meteor, but I think that was retconned.