Hokkaidoconchidae is an extinct family of deep-water sea snails, marine gastropod mollusks.Kiel, S., Campbell, K.A., Elder, W.P., and Little, C.T.S. 2008. Jurassic and Cretaceous gastropods from hydrocarbon seeps in forearc basin and accretionary prism settings, California. Acta Palaeontologica Polonica 53 (4): 679–703.
Shell description The shell is small and elongate.
Genera Hokkaidoconcha Kaim, Jenkins & Warén, 2008 - type genus Hokkaidoconcha tanabei Kaim, Jenkins & Warén, 2008 - the type species from the upper Cretaceous in Japan Hokkaidoconcha bilirata Kiel, Campbell, Elder & Little, 2008 - from the lower Cretaceous in Wilbur Springs, California, USA Hokkaidoconcha morenoensis Kiel, Campbell, Elder & Little, 2008 - from the upper Cretaceous in Moreno Gulch, California, USA Hokkaidoconcha occidentalis (Stanton, 1895) - synonym Hypsipleura? occidentalis Stanton, 1895Stanton T. W. 1895. Contributions to the Cretaceous paleontology of the Pacific coast: the fauna of the Knoxville beds. United States Geological Survey Bulletin 133: 1–132. - from the upper Jurassic to the lower Cretaceous in California: Paskenta, California, Berryessa, San Jose, California, Wilbur Springs, California Hokkaidoconcha tehamaensis Kiel, Campbell, Elder & Little, 2008 - from the upper Jurassic in Paskenta, California, USA
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