Hyperacanthus Amoenus
''Hyperacanthus'' may refer to: * Hyperacanthus (gastropod), a genus in the family Cirridae * Hyperacanthus (plant) ''Hyperacanthus'' is a flowering plant genus in the family Rubiaceae, occurring on Madagascar and nearby southern Africa, approximately from Mozambique to the southernmost parts of the continent. This genus used to contain only 5 species, but t ...

Hyperacanthus (gastropod)
''Hyperacanthus'' may refer to: * Hyperacanthus (gastropod), a genus in the family Cirridae * Hyperacanthus (plant) ''Hyperacanthus'' is a flowering plant genus in the family Rubiaceae, occurring on Madagascar and nearby southern Africa, approximately from Mozambique to the southernmost parts of the continent. This genus used to contain only 5 species, but t ...

Cirridae
Cirridae is an extinct family of fossil sea snails, marine gastropod mollusks in the superfamily Porcellioidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). These snails date from the Mesozoic era, and are sinistral in their shell-coiling. Taxonomy This family consists of three following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005): * Cirrinae Cossmann, 1916 * Platyacrinae Wenz, 1938 - synonym: Hesperocirrinae O. Haas, 1953 * Cassianocirrinae Bandel, 1993 Genera and species Genera and species within the family ''Cirridae'' include: * '' Alaskacirrus'' Frýda & Blodgett, 1998 - from the Devonian of west-central Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ... ** '' Alaskacirrus bandeli'' Frýda & B ...
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