FWIW, Pond cypress and BC seem to interbreed regularly. Over the years, I've noticed that Fla. collected BC always seem to have this kind of foliage (awl shaped), while Louisiana collected BC always have feather like leaves...My bonsai friends have several old Fla. collected BC as bonsai. They all have this kind of foliage or a mix of the two. First photo is mine. Second stolen from Redwood Ryan
Two of their Fla. collected BC: