vahlkampfia inornata vahlkampfia inornata vahlkampfia inornata is a species of excavates. it has a pas-positive surface layer and forms cysts in culture. vahlkampfia inornata scientific classification domain: eukaryota phylum: percolozoa class: heterolobosea order: schizopyrenida family: vahlkampfiidae genus: vahlkampfia species: v. inornata binomial name vahlkampfia inornatapage, 1967