Taxonomy of Family Tetradellidae Swartz, 1936
Subnodes of Tetradellidae Swartz, 1936 | Subfamily | Glossomorphitinae
Hessland, 1953
| 8
28 | Genera
Species | | Subfamily | Perspicillinae
Schallreuter, 1967
| 8
36 | Genera
Species | | Subfamily | Sigmoopsinae
Henningsmoen, 1953
| 10
36 | Genera
Species | | Subfamily | Sylthinae
Schallreuter, 1982
| 6
16 | Genera
Species | | Subfamily | Tetradellinae
Swartz, 1936
| 11
129 | Genera
Species | | Genus | Aahithis ♰
Schallreuter, 1988
| 2 | Species | | Genus | Adamczakites
Olempska, 1994
| 0 | Species | | Genus | Ahla ♰
Schallreuter, 1993
| 3 | Species | | Genus | Ajchalina
Kolosnitsyna, 1984
| 0 | Species | | Genus | Aulacopsis ♰
Hessland, 1949
| 2 | Species | | Genus | Biflabellum ♰
Oepik, 1935 ⇒ Oepikium
| 1 | Species | | Genus | Cutympanum
Williams, Komatsu, Nguyen, Siveter, McGairy, Bush, Goodall, Harvey, Stocker, Legrand, Yamada & Miller, 2023
| 1 | Species | | Genus | Dilobellla
| 1 | Species | | Genus | Gunnaropsis ♰
Spjeldnaes, 1963
| 0 | Species | | Genus | Hippa
Barrande, 1872
| 2 | Species | | Genus | Ivaria
Neckaja, 1960
| 0 | Species | | Genus | Opikium
Agnew, 1942
| 2 | Species | | Genus | Ordovicia ♰
Neckaja, 1956
| 0 | Species | | Genus | Petrisigmoopsis ♰
Pinto & Purper, 1980
| 1 | Species | | Genus | Pseudotallinnella ♰
Sarv, 1959 ⇒ Kiesowia
| 0 | Species | | Genus | Sigmoopsoides ♰
Schallreuter, 1964
| 0 | Species | | Genus | Ushkarella ♰
Koneva, 1978
| 0 | Species | | Genus | Uvonhachtia
Schallreuter, 1988
| 0 | Species | | Genus | Wehrlina ♰
Schallreuter, 1964
| 0 | Species | | Genus | Winchellatia ♰
Kay, 1940
| 13 | Species |
Distribution and Species lists of Tetradellidae Swartz, 1936
Distribution on islands
Found in fossile formations
Links, sources and further information Tetradellidae at gbif.org
Tetradellidae at irmng.org
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