Misszhouia is a genus of small to average sized (up to 6 centimetres (2.4 in) long)[2] marine trilobite-like arthropods within the Naraoiidae family, that lived during the early Cambrian period.
[4] The sister genus Naraoia differ from Misszhouia longicaudata in having the following characteristics: Misszhouia longicaudata has been collected from the Lower Cambrian (late Atdabanian) of China (Yu'anshan Member of the Heilinpu Formation at Maotia’shan, the classic Chengjiang locality)[4] and also been found in the Niutitang Formation.
[5] Misszhouia canadensis is known from the Middle Cambrian Burgess Shale in the Marble Canyon (Kootenay National Park).
Such carnivorous behaviour is confirmed by the relatively small digestive system, that indicates high nutrition value food.
[4][6] A cladistic analysis conducted in 2021 suggested that Misszhouia represented a monophyletic subgroup within Naraoia as traditionally broadly defined.