Adenophorea

It has been by and large abandoned by modern taxonomy, because there is strong evidence for it being a motley paraphyletic group of unrelated lineages of roundworms.

Adenophoreas' excretory system is simple and non-tubular when present.

Male Adenophoreas have supplement glands situated in a single ventro-median row.

Sensory papillae of Adenophoreas are in the cephalic region and along the body.

A number of these traits above are plesiomorphic, and thus unsuitable to discern relationships.