1. Species Austrosignum escandellae Castello, 2004
2. Species Austrosignum glaciale Hodgson, 1910
3. Species Austrosignum latum Just & Wilson, 2021
4. Species Austrosignum pilosum Just & Wilson, 2021
5. Species Austrosignum dentatum Winkler, 1994 accepted as Quetzogonium dentatum (Winkler, 1994) (basionym)
6. Species Austrosignum dubia (Hale, 1937) accepted as Austronanus dubius (Hale, 1937) (changed genus)
7. Species Austrosignum erratum Schultz, 1964 accepted as Munnogonium erratum (Schultz, 1964) (basionym)
8. Species Austrosignum falklandicum Nordenstam, 1933 accepted as Munnogonium falklandicum (Nordenstam, 1933)
9. Species Austrosignum fuegiae Doti & Roccatagliata, 2005 accepted as Advenogonium fuegiae (Doti & Roccatagliata, 2005) (basionym)
10. Species Austrosignum globifrons Menzies, 1962 accepted as Munnogonium globifrons (Menzies, 1962)
11. Species Austrosignum grande Hodgson, 1910 accepted as Austrosignum glaciale Hodgson, 1910 (unaccepted > junior subjective synonym)
12. Species Austrosignum incisa (Richardson, 1908) accepted as Cryosignum incisum (Richardson, 1908) (unaccepted > junior subjective synonym)
13. Species Austrosignum latifrons Menzies, 1962 accepted as Cryosignum latifrons (Menzies, 1962) (basionym)
14. Species Austrosignum maltinii Schiecke & Fresi, 1972 accepted as Boreosignum maltinii (Schiecke & Fresi, 1972) (basionym)
15. Species Austrosignum spinosum Kussakin, 1982 accepted as Kussakinella spinosum (Kussakin, 1982) (unaccepted > superseded combination)
16. Species Austrosignum tillerae Menzies & Barnard, 1959 accepted as Munnogonium tillerae (Menzies & Barnard, 1959) (basionym)

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