macrochoanite
/ˌmakrəʊˈkəʊənʌɪt/Palaeontology. Now historical
noun
A fossil nautiloid of the former group Macrochoanites (of unspecified rank, more or less equivalent to the modern family Bactritidae), characterized by relatively long septal necks.
Origin
Late 19th century. From scientific Latin Macrochoanites from macro- + ancient Greek χοάνη funnel + scientific Latin -ites: compare choanite.