A fossil acanthocephalan, Juracanthocephalus, from the 160-million-year-old Daohugou Biota in North China's Inner Mongolia ...

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DR. MEYER gives an interesting historical account of the Acanthocephala from their discovery by Leeuwenhoek (1695) who found two species in the gut of the eel. Koelreuther (1771) and 0.