S. heishankowensis Hong, 1965 S. martinezdelclosi Fleck & Nel, 2003 Sinaeschnidia (meaning "Chinese Aeschnidium") is a genus of prehistoric dragonfly.

S. heishankowensis is a common component of the Jehol Biota of northeastern China.

It is known from numerous specimens, both nymphs and imagos (adults).

[1] S. martinezdelclosi is known from slightly earlier deposits in Las Hoyas, Spain.

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