Doesn't look like that article says anything about trumpets to me. It does link to this article about horns, though: https://en.m.wikipedia.org/wiki/Horn_(instrument)
That one says:
In horns, unlike some other brass instruments such as the trumpet, the bore gradually increases in width through most of its length—that is to say, it is conical rather than cylindrical.[1]
Which seems to specifically exclude trumpets from horns.
Most of these horn sections feature some combination of saxophones, trumpets and trombones.
Also the popular music section includes two photos with people playing trumpet and lists a bunch of horn sections, most of which contain trumpets.
General rules:
Exceptions may be made at the discretion of the mods.
Doesn't look like that article says anything about trumpets to me. It does link to this article about horns, though: https://en.m.wikipedia.org/wiki/Horn_(instrument)
That one says:
Which seems to specifically exclude trumpets from horns.
Also the popular music section includes two photos with people playing trumpet and lists a bunch of horn sections, most of which contain trumpets.