''Ringsteadia'' is a

Jurassic The Jurassic ( ) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of ...

ammonite.

Distribution

France, Germany, the Russian Federation and the United Kingdom Paleobiology Database - Ringsteadia. 2017-10-16.
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Species

* ''Ringsteadia anglica'' Salfeld, 1917 * ''Ringsteadia bassettensis'' Spath, 1935 * ''Ringsteadia brandesi'' Salfeld, 1917 * ''Ringsteadia evoluta'' Salfeld, 1917 * ''Ringsteadia frequens'' Salfeld, 1917 * ''Ringsteadia marstonensis'' Salfeld, 1917 * ''Ringsteadia pseudocordata'' Blake and Hudleston, 1877 * ''Ringsteadia pseudoyo'' Salfeld, 1917 * ''Ringsteadia salfeldi'' Dorn, 1925 * ''Ringsteadia sphenoidea'' Buckman, 1926

References

Jurassic ammonites Ammonitida genera Perisphinctoidea Aulacostephanidae {{Ammonitina-stub