Title: Preangerian (Late Miocene) Mollusca from a hill near Sekurau, northern Kutai, Kalimantan Timur (East Borneo) ; Comments on Acantinella, Preangeria and Taurasia (Muricidae, Drupinae) ; Mollusca from Preangerian deposits of Mandul Island, northeastern Kalimantan Timur (East Borneo)
Subjects: Fossil Mollusks, Paleontology
Places: Indonesia, Kalimantan Timur
Time periods: Miocene