Yes it is.
They are quite common despite the fact they are all different one to another, considering the size, colour, style, weight,...
So it's impossible to create a page for every one.
Here's a page for Tetricus Imitation, I guess that it is to be used for every tetricus barbarous radiate...
https://en.numista.com/catalogue/pieces31119.html
In comparison, two barbarous radiates i got :

(first one is funny because of the TETRVCVS legend, and weights more than 4g)
I see a seated figure on yours reverse but you are never really sure with these reverses...
About the issuer, these were made by irregular mints, but with more or less the approval (or at least the non-opposition) of the authorities. So I guess they should be classified under Ancient Rome.