
Adenophorea or Aphasmidia was a class of
nematodes (roundworms). It has been by and large abandoned by modern
taxonomy
Taxonomy is the practice and science of categorization or classification.
A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...
, because there is strong evidence for it being a motley
paraphyletic
In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...
group of unrelated lineages of roundworms.
[ToL (2002)]
Characteristics supposed to distinguish Adenophorea are:
* amphids always post-labial, shape, pore-like to elaborate
* deirids are not seen
* phasmids are generally absent
* hypodermal glands present (excretory?)