My best guess would be that this is meant to carve up the late Tang and the Five Dynasties and Ten Kingdom periods like this, based on the names, dates, and contents, and on how the WRG lists work:
Northern Five Dynasties = Later Liang and Later Zhou
Later Tang and Southern Five Dynasties = late Tang and the Ten Kingdoms except the Northern Han
Shatuo Chinese dynasties = Later Tang, Later Jin, Later Han, and Northern Han
The slightly bold assumption here is, of course, that the "Later Tang and Southern Five Dynasties" includes neither the Later Tang nor any of the other Five Dynasties: I'm assuming it should be "Late Tang", as in the 755-907 part of the Tang dynasty, and that "Southern Five Dynasties" is curious way of referring to the South during the Five Dynasties period.
Assuming this is correct, I would suggest renaming as follows:
Northern Five Dynasties → Later Liang and Later Zhou
Later Tang and Southern Five Dynasties → Late Tang and Ten Kingdoms
Shatuo Chinese Dynasties → Shatuo Chinese Dynasties [no change]
If my assumptions are wrong, a blame the confusing list names and submit they need to change anyway
. With that said, it's the last week of the semester before Final Exams and the students are freaking out and I've got a metric buttload of grading to catch up on and so on, so realistically I won't be able to look at it until maybe Dec 20 or so.