Abstract
Five species of Steginoporella from the Palaeogene rocks of the Western Kachchh, Gujarat are described in this paper. Out of five steginoporellids, S. mathuri n.sp., S. murachbanensis n.sp. and S. chiplonkari n.sp. are new to science; S. bhujensis is already reported from this region; and Steginoporella sp. indet is reported for the first time in these rocks. All these species show Indo-Pacific affinities. The occurrence of Steginoporella from Middle Eocene to Early Miocene indicates that two stages of radiation had taken place in Kachchh. Phylogenetic analysis using PAST programme indicates that S. mathuri is very distinct from other species of Steginoporella; while S. murachbanensis and S. bhujensis form the same clade.
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