Mystery Micrograph hint

Last week's MM is getting covered in cobwebs and accumulating a thicket of tumbleweeds at the edges. With a chorus of crickets.

Since we've established it's a trichomonad, we've narrowed it down to this tree:

(Noda et al. 2009 Mol Phylogenet Evol; a parabasalian phylogeny. It's somewhere in there. It's even mentioned. /massive hint)

I do realise this one is even more obscure/diffucult than usual.