Müller, 1858
See page Ac. 1 Introduction for more about Acantharia. The Class Acantharia comprises around 50 genera and 150 species grouped into 18 families and four orders. Orders, families and genera are displayed below; the links enable to go to the respective pages in this module.
Order Holacanthida Schewiakoff, 1926
Family Acanthocollidae Febvre, Febvre and Michaels, in press
Genus Acanthocolla
Genus Acanthocyrtha
Genus Acanthospira
Family Acanthochiasmidae Haeckel, 1862, emend. Schewiakoff, 1926
Genus Acanthochiasma
Family Acanthoplegmidae Schewiakoff, 1926, emend. Reshetnjak, 1979
Genus Acanthoplegma
Order Symphyacanthida Schewiakoff, 1926
Family Amphilithidae Haeckel, 1882, emend. Schewiakoff, 1926
Genus Amphibelone
Genus Amphilithium
Family Astrolithidae Haeckel, 1860, emend. Schewiakoff, 1926
Genus Acantholithium
Genus Astrolithium
Genus Astrolonche
Genus Heliolithium
Family Pseudolithidae Schewiakoff, 1926
Genus Dicranophora
Genus Haliommatidium
Genus Pseudolithium
Order Chaunacanthida Schewiakoff, 1926
Family Stauraconidae Schewiakoff, 1926
Genus Amphiacon
Genus Heteracon
Genus Stauracon
Family Conaconidae Schewiakoff, 1926 (genus Conacon)
Family Gigartaconidae Schewiakoff, 1926 (genus Gigartacon)
Order Arthracanthida Schewiakoff, 1926
Suborder Sphaenacantha Schewiakoff, 1926
Family Acanthometridae Haeckel, 1862, emend. Schewiakoff, 1926
Genus Acanthometra
Genus Amphilonche
Genus Tetralonche
Family Dorataspidae Haeckel, 1862
Genus Aconthaspis
Genus Coscinaspis
Genus Craniaspis
Genus Dictyaspis
Genus Dorataspis
Genus Hystrichaspis
Genus Icosaspis
Genus Lychnaspis
Genus Pleuraspis
Genus Siphonaspis
Genus Stauraspis
Family Phractopeltidae Haeckel, 1862
Genus Phractopelta
Family Diploconidae Haeckel, 1862
Genus Diploconus
Family Lithopteridae Haeckel, 1887, emend. Schewiakoff, 1926
Genus Lithoptera
Family Hexalaspidae Haeckel, 1887
Genus Coleaspis
Genus Hexaconus
Genus Hexalaspis
Suborder Phyllacantha Schewiakoff, 1926
Family Phyllostauridae Schewiakoff, 1926
Genus Acanthostaurus
Genus Amphistaurus
Genus Lonchostaurus
Genus Phyllostaurus
Genus Zygostaurus
Family Stauracanthidae Haeckel, 1887
Genus Phatnacantha
Genus Pristacantha
Genus Stauracantha
Genus Xiphacantha)
Family Dictyacanthidae Schewiakoff, 1926
Genus Dictyacantha