Siyuichthyidae is an extinct family of stem-teleost fish known from the Early Cretaceous Tugulu Group of Xinjiang, China. It contains five genera with a total of nine species, all of which are based on poor remains.
Classification Bogdaichthys B. fukangensis B. serratus Dsungarichthys D. bilineatus Manasichthys M. elongatus M. tuguluensis Siyuichthys S. ornatus S. pulchellus S. pulcher Wukangia W. houyanshanensis
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