Seven species belonging to the gastropod family Volutidae are reported for the first time from Kutch, Gujarat, India. They are Prestrombus aff. Prestrombus rockeiCox, 1931, Indovoluta humberti (d'Archiac and Haime, 1854), Indovoluta multidentata (d'Archiac and Haime, 1854), Involuta daviesiCox, 1931, Involuta coxi new species, Athleta (Volutocorbis) harnaiensisCox, 1931, and Lyria cf. Lyria punjabensisEames, 1952. Indovolutinae new subfamily, constituted of the Paleogene genera PrestrombusDouvillé, 1929, IndovolutaEames, 1956, InvolutaCox, 1931, and LyrischapaAldrich, 1911, and the Cretaceous genus GosaviaStoliczka, 1865, is proposed. These forms have elaborate development of columellar plaits. All of these genera evolved in the western part of the Indian subcontinent. They, except Lyrischapa, also largely remained restricted to this area. Lyrischapa flourished in the Americas after possibly migrating through the southern margin of the relict Tethys Ocean and crossing the Atlantic Ocean. It is argued that the geographic and temporal restriction of this new subfamily was due to lecithotrophic larval development.
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30 August 2019
New subfamily Indovolutinae and other volutids (Volutidae, Gastropoda) from the Eocene of Kutch, western India and their paleobiogeographic implications
Kalyan Halder,
Shrestha Das
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Journal of Paleontology
Vol. 93 • No. 5
August 2019
Vol. 93 • No. 5
August 2019