Boucotonotus
snajdri
(Horný, 1963 †)
(FOSSIL)

Plectonotus
cherylae
Peel, 1974 †
(FOSSIL)

Plectonotus
gaspensis
(A.H. Clarke, 1908 †)
(FOSSIL)

Plectonotus
trilobatus
(T.A. Conrad, 1839 †)
(FOSSIL)

Plectonotus
derbyi
(A.H. Clarke, 1899 †)
(FOSSIL)

Plectonotus
dereimsi
(Knod, 1908 †)
(FOSSIL)

Plectonotus
hapsideus
A.H. Clarke, 1913 †
(FOSSIL)

Plectonotus
laticarinata
Knod, 1908 †
(FOSSIL)

Plectonotus
quadrilobatus
(Reed, 1904 †)
(FOSSIL)

Plectonotus
raricostatus
Radabaugh, 1942 †
(FOSSIL)

Plectonotus
rectangularis
Knod, 1908 †
(FOSSIL)

Plectonotus
reissi
A.H. Clarke, 1899 †
(FOSSIL)

Plectonotus
salteri
A.H. Clarke, 1899 †
(FOSSIL)

Plectonotus
cherylae
Peel, 1974 †
(FOSSIL)

Plectonotus
gaspensis
(A.H. Clarke, 1908 †)
(FOSSIL)

Plectonotus
trilobatus
(T.A. Conrad, 1839 †)
(FOSSIL)

Plectonotus
derbyi
(A.H. Clarke, 1899 †)
(FOSSIL)

Plectonotus
dereimsi
(Knod, 1908 †)
(FOSSIL)

Plectonotus
hapsideus
A.H. Clarke, 1913 †
(FOSSIL)

Plectonotus
laticarinata
Knod, 1908 †
(FOSSIL)

Plectonotus
quadrilobatus
(Reed, 1904 †)
(FOSSIL)

Plectonotus
raricostatus
Radabaugh, 1942 †
(FOSSIL)

Plectonotus
rectangularis
Knod, 1908 †
(FOSSIL)

Plectonotus
reissi
A.H. Clarke, 1899 †
(FOSSIL)

Plectonotus
salteri
A.H. Clarke, 1899 †
(FOSSIL)

Ptomatis
moreirai
A.H. Clarke, 1913 †
(FOSSIL)

Ptomatis
patulus
(J.W. Hall, 1843 †)
(FOSSIL)

Ptomatis
proteiforme
Hyde, 1953 †
(FOSSIL)

Ptomatis
rudis
(J.W. Hall, 1860 †)
(FOSSIL)

Tetranota
carrickensis
Reed, 1921 †
(FOSSIL)

Tetranota
carrickensis
Reed, 1921 †
(FOSSIL)

Tetranota
charon
(Billings, 1860 †)
(FOSSIL)

Tetranota
conspicua
(d'Eichwald, 1840 †)
(FOSSIL)

Tetranota
craigensis
Reed, 1921 †
(FOSSIL)

Tetranota
decurrens
(d'Eichwald, 1860 †)
(FOSSIL)

Tetranota
divergens
(E.F.R.K. Koken, 1897 †)
(FOSSIL)

Tetranota
hippopus
(Salter, 1866 †)
(FOSSIL)

Tetranota
jugata
(E.F.R.K. Koken, 1896 †)
(FOSSIL)

Tetranota
lineata
(E.F.R.K. Koken, 1896 †)
(FOSSIL)

Tetranota
macra
Ulrich & Scofield, 1897 †
(FOSSIL)

Tetranota
obsoleta
Ulrich & Scofield, 1897 †
(FOSSIL)

Tetranota
rudicostata
E.F.R.K. Koken, 1897 †
(FOSSIL)

Tetranota
rugosa
(E. Emmons, 1855 †)
(FOSSIL)

Tetranota
scanica
Ebbestad & al., 2013 †
(FOSSIL)

Tetranota
sexcarinata
Ulrich & Scofield, 1897 †
(FOSSIL)

Tetranota
silurica
(d'Eichwald, 1840 †)
(FOSSIL)

Tetranota
umbilicata
Yü, 1961 †
(FOSSIL)

Tetranota
wisconsinensis
(R.P. Whitfield, 1878 †)
(FOSSIL)

Tetranota
bidorsata
(Ulrich & Scofield, 1897 †)
(FOSSIL)

Tetranota
carrickensis
Reed, 1921 †
(FOSSIL)

Tritonophon
bisulcata
A. Römer, 1843 †
(FOSSIL)

Tritonophon
bohemica
(J. Perner, 1903 †)
(FOSSIL)

Tritonophon
carina
(Beushausen, 1884 †)
(FOSSIL)

Tritonophon
kivitalonae
Peel, 1974 †
(FOSSIL)

Tritonophon
peeli
Horný, 1997 †
(FOSSIL)

Tritonophon
subtrilobatus
(Troedsson, 1919 †)
(FOSSIL)

Tritonophon
trilobatus
(J. de C. Sowerby & Murchison, 1839 †)
(FOSSIL)

Tritonophon
trimetra
(Öpik, 1953 †)
(FOSSIL)