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{{Short description|Subclass of crustaceans}}{{Automatic taxobox| image = Kallidecthes richardsoni fossil shrimp (Mazon Creek Lagerstatte, Francis Creek Shale, Middle Pennsylvanian; coal mine dump pile near Essex, northern Illinois, USA).jpg

Kallidecthes>Kallidecthes richardsoni(Aeschronectida: Kallidecthidae)| image2 = Odontodactylus scyllarus3.jpg

Peacock mantis shrimp>Odontodactylus scyllarus(Stomatopoda: Odontodactylidae)| taxon = Hoplocarida

William Thomas Calman>Calman, 1904| subdivision_ranks = Orders| subdivision = Stomatopoda Aeschronectida † Palaeostomatopoda † }}Hoplocarida is a subclass of crustaceans. The only extant members are the mantis shrimp (Stomatopoda), but two other orders existed in the Palaeozoic: Aeschronectida and Palaeostomatopoda.JOURNAL,weblink Contributions to Zoology, 67, 3, 155–186, 1998, Palaeo- and archaeostomatopods (Hoplocarida: Crustacea) from the Bear Gulch Limestone, Mississippian (Namurian), of central Montana, Ronald A. Jenner, Cees H. J. Hof & Frederick R. Schram, 2010-01-20,weblink" title="archive.today/20120707154241weblink">weblink 2012-07-07, dead, References {{Reflist}}{{Malacostraca}}{{Taxonbar|from=Q625077}}{{Malacostraca-stub}}