Diverse new tropical land snail species from mid-Cretaceous Burmese amber (Mollusca: Gastropoda: Cyclophoroidea, Assimineidae)

摘要: Abstract The amber fossil record of land snails is poorly studied, with few described species relative to other invertebrate groups (e.g., insects and chelicerates). Recently discovered snail fossils from Myanmar present an important opportunity understand the tropical fauna Cretaceous, which was a time when many terrestrial invertebrates were rapidly diversifying. We describe 12 new in 3 families mid-Cretaceous Burmese amber: Eotrichophorus kachin gen. et sp. nov., Perissocyclos kyrtostoma Macropupina electricus Paleodiplommatina spelomphalos Xenostoma lophopleura nov. Assiminea striatura six uncertain taxonomic affinity. also discuss history Cyclophoroidea. report first periostracal hairs their adaptive significance, as well general paleoecology snails.