Henodus was a peculiar placodont from the Late Triassic of Germany that actually was a sauropterygian - that group of marine reptiles that Atopodentatus might be related to.

Henodus 是德国晚三叠世的一种奇特的板齿兽，它实际上是一种蜥脚类动物——可能与 Atopodentatus 有亲缘关系的那群海洋爬行动物。