Noticed artist has 2 artist tags at e621.

4 uploads with artist tag turkhasein
one upload with artist tag j_norris

*** Art by artist at e621 (sorting roughly by date, earliest at top):

1) date on art: 1999 (1st in sequence?)
post #2168199
written on art: "© 1999 J. Norris (Tur'Khasein)".

2) date on art: 1999 (2nd in sequence?)
post #2168202
written on art: "© 1999 J. Norris a.k.a. Tur'Khasein".

3) date on art: 1999 (last in sequence?)
post #2168205
written on art: "© 1999 J. Norris a.k.a. Tur'Khasein".

4) date on art: 7-14-99
post #2168208
written on art: "JN" artist symbol, plus
"© 7-14-99 J. Norris"
("Nachtwulf © his player")
"Tur'Khasein © J. Norris".

5) date on art: 9-18-2000
post #7044 (the solo post tagged with j_norris)
written on art: "JN" artist symbol.

(approximately the same "JN" artist symbol on 7044 and 2168208)

***

In my opinion, tag for artist could be:

• j_norris (exists)
• j._norris (some existing *._* artist tags: d._e._belton_(artist), evo_t._rex, j.w._kennedy, etc.)
• tur'khasein
• turkhasein (exists, but probably should be changed to tur'khasein, based on text written on art)