First time I've heard that name for the angle bracket.
https://en.wikipedia.org/wiki/Greater-than_sign
(I checked the source, it's a > And now I've used up my pedantic quota for the day.)
Okay, but seriously, Unicode has that listed as "greater than sign," and has several similar characters.
U+003E > greater-than sign U+203A › single right-pointing angle quotation mark U+232A 〉 right-pointing angle bracket U+27E9 ⟩ mathematical right angle bracket U+3009 〉 right angle bracket
First time I've heard that name for the angle bracket.