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A new species of cardiocarpalean ovule is described and diagnosed from Early Permian coal balls collected in Shanxi Province of north China and is named Cardiocarpus tuberculatus sp. nov. Ovules are small, have 180 o rotational symmetry and show a tuberculate outer margin resulting from variation in integumentary thickness. The integument has a prominent uniseriate epidermis, sarcotesta with...
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