Is this a known/named style guide? I am preparing a paper for publication and the journal requests that it is in the following style for references:

https://tandf.co.uk//journals/authors/style/reference/ref_ujrs.pdf

Is this a known style guide? It does not seem to match Chicago or APA.
The reference style seems to be called "Taylor &amp; Francis Reference Style X Harvard" (TF-X Harvard).  A more detailed guide for it is at https://www.tandf.co.uk/journals/authors/style/reference/tf_X.pdf .