Garden Variety Linguist on Nostr: It's not as rich as biology, partly because we can't go as far back in time, but ...

It's not as rich as biology, partly because we can't go as far back in time, but there is an established taxonomic structure:

variety (aka dialect, e.g. Western Canadian English)
language (English)
branch (West Germanic)
sub-family (Germanic)
family/phylum/stock (Indo-European)
macrofamily/superfamily (Nostratic???, hard to find evidence)
"LUCA" (Proto-World???, no set term for this level, as it's purely speculative)

So "branch" is roughly equivalent to genus

https://en.m.wikipedia.org/wiki/Language_family#Structure_of_a_family