Amphineura


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Amphineura

a primitive group of molluscs thought to be very like the ancestral form. Present-day forms are similar to Ordovician fossils.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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n., with remarks upon the anatomy and histology of the Amphineura. Niederfundische Archly fiir Zoologie 1881, Suppl.