Traits Taxon list
Acrospira cristata Batten, 1985 †
Cookiloxa pulchra Frýda, 2000 †
Devonozyga perneri Horný, 1955 †
Eligmoloxus bulimoides (Piette, 1855) † (accepted > unreplaced junior homonym )
Holopella antiqua (Münster, 1840) †
Holopella gracilior McCoy, 1851 †
Holopella intermedia McCoy, 1851 † (uncertain > unassessed )
Holopella lineata (Münster, 1840) † (uncertain > taxon inquirendum )
Holopella monile McCoy, 1851 † (uncertain > unassessed )
Hornyzyga camilleriae Cook, 1995 †
Loxonema (Stylonema) potens Perner, 1907 † accepted as Stylonema potens Perner, 1907 †
Loxonema attenuata (Stevens, 1858) † (uncertain > unassessed )
Loxonema babbinboonensis Etheridge, 1907 †
Loxonema brevis McCoy, 1844 † (uncertain > unassessed )
Loxonema elegans McCoy, 1851 † (uncertain > unassessed )
Loxonema elegantissima Yoo, 1988 †
Loxonema gregaria (J. De C. Sowerby, 1839) †
Loxonema impendens McCoy, 1844 † (uncertain > unassessed )
Loxonema inornata Meek & Worthen, 1861 † (uncertain > unassessed )
Loxonema lamellosa W. G. H. Maxwell, 1961 †
Loxonema microphanula X.-D. Qiao, 1983 † (uncertain > unassessed )
Loxonema multicostata Meek & Worthen, 1861 † (uncertain > unassessed )
Loxonema nitidula Meek & Worthen, 1861 † (uncertain > unassessed )
Loxonema parva Stauffer & Schroyer, 1920 † accepted as Anthracopupa parva (Stauffer & Schroyer, 1920) †
Loxonema polygyra McCoy, 1844 † (uncertain > unassessed )
Loxonema pulcherrima McCoy, 1844 † (uncertain > unassessed )
Loxonema rugosa Meek & Worthen, 1861 † (uncertain > unassessed )
Loxonema scitula Meek & Worthen, 1861 † (uncertain > unassessed )
Loxonema sinuosa (J. de Sowerby, 1839) †
Loxonema sulcatula McCoy, 1844 † (uncertain > unassessed )
Loxonema turrita McCoy, 1844 † (uncertain > unassessed )
Medfrazyga convexa Nützel, 2012 †
Medfrazyga rectecostata Nützel, 2012 †
Medfrazyga zaitsevi Mazaev, 2015 †
Microptychis permiana Batten, 1985 †
Microptychis wrighti Longstaff, 1912 † (uncertain > unassessed )
Nodoloxonema ingens (Frech, 1894) †
Nodoloxonema magnificum (Spitz, 1907) †
Nodoloxonema plusquelleci Blodgett, Fryda & Racheboeuf, 1999 †
Palaeozygopleura (Rhenozyga) retrostriatum (Kirchner, 1915) † represented as Palaeozygopleura retrostriatum (Kirchner, 1915) †
Palaeozygopleura difficile (Sardeson, 1902) †
Palaeozygopleura obesum Yoo, 1994 †
Palaeozygopleura retrostriatum (Kirchner, 1915) †
Palaeozygopleura tianshanensis X.-D. Qiao, 1983 † (uncertain > unassessed )
Palaeozygopleura vostokovae Horný, 1955 †
Seleukella costata Mazaev, 2019 †
Stylonema absoluta (Goldfuss, 1844) †
Stylonema potens Perner, 1907 †
Stylonema trochleatum (Münster, 1840) †