Mesosingeria is a genus of fossil foliage attributable to the Cycadales.

This genus is found in Early Cretaceous rocks from Argentina.

The genus was erected by Sergio Archangelsky based on material from the Anfiteratro de Ticó Formation in Argentina to include two species, namely M.coriacea and M.

[2][3][4] The genus includes foliage fossils of bipinnate leaves with a flat rachis.

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