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Gastropod fossils are abundant, but they are rarely preserved in amber. Two new terrestrial gastropods, Euthema naggsi gen. et sp. nov. and Cretatortulosa multilinea gen. et sp. nov., are described from mid-Cretaceous amber of northern Myanmar. Euthema naggsi and Cretatortulosa multilinea are the earliest records of the Diplommatinidae and Pupinidae, respectively. The discovery is consistent with...
Thirteen species of non-marine gastropods recovered from the Xiazhuang Formation near Xishan, to the west of Beijing, are described. They are attributable to ten genera: Aplexa, Bithynia, Gyraulus, Lymnaea, Mesocochliopa, Mesochilina, Physa, Proauricula, Pseudarinia, and Zaptychius. Four of the species are new: Bithynia xishanensis, Mesochilina? xiazhuangensis, Proauricula elegans and Zaptychius costatus...
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