Abstract
Land snails in mid-Cretaceous Burmese amber have aroused interest from palaeontologists in recent years. Here we describe three newly discovered species and a new genus belonging to families Pupinidae and Diplommatinidae: Cretatortulosa cretakachinensis sp. nov., Rhaphaulus zhuoi sp. nov. and Pulchraspira teneristoma gen. et sp. nov., using classic light microscopy and modern micro-CT scans with computer 3D reconstructions. Rhaphaulus zhuoi sp. nov represents the earliest fossil record of the genus Rhaphaulus. Our discoveries increase known species diversity of families Pupinidae and Diplommatinidae (Cyclophoroidea) during the Cretaceous of Asia. We compare these new taxa with fossil and extant representatives, discuss their significance in the context of the Pupinidae and Diplommatinidae fossil record, and consider habitats and feeding habits with reference to extant cyclophoroideans.
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