Someone in another post i did, said there is 42 marks and 6 elite marks, but i only found 40 marks and 6 elite ones, any idea what are the last ones i'm missing?
(my current marks can be found below)

Looks like the NRG ones from Branch castle library.  I genuinely don't know if you can get them in World 2 as both areas changed. Probably the one by Meksicberg. The island is replaced by a bigger area, so maybe they show up there?