Adenophorea

Adenophorea or Aphasmidia was a class of nematodes (roundworms). 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.

Characteristics supposed to distinguish Adenophorea are:

As it seems, a number of these traits are plesiomorphic, and thus unsuitable to discern relationships.

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