Abstract
ABSTRACT Hither, an extinct floral element of Florissantia Knowlton, unearthed from the early Eocene (~55–52 Ma) of the Gurha lignite mine, Rajasthan, western India, aids in highlighting the evolutionary significance of this angiosperm lineage in the Indian Cenozoic history. Comparison with fossil taxa from other regions supports the attribution to an extinct malvalean genus Florissantia. It is characterized by a transversely impressed, actinomorphic, gamosepalous flower with five rounded lobed sepals, each sepal fused at least 60% of its length, sinuses between sepal lobes shallowly incised and radiating reticulate venation. The occurrence of this extinct genus, previously known only from the Paleogene of North America and East Asia, is pertinent to the malvalean floristic diversification in India.
Published Version
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