CyrtolitesW
Cyrtolites

Cyrtolites is an extinct genus of monoplacophorans in the family Cyrtolitidae.Names brought to synonymy Cyrtolites elegans S.A. Miller 1874, a synonym for Phragmolites elegans

HelcionopsisW
Helcionopsis

Helcionopsis is an extinct genus of paleozoic monoplacophoran in the family Tryblidiidae.

Helcionopsis radiatumW
Helcionopsis radiatum

Helcionopsis radiatum is an extinct species of paleozoic monoplacophoran in the family Tryblidiidae.

Helcionopsis striataW
Helcionopsis striata

Helcionopsis striata is an extinct species of paleozoic monoplacophoran in the family Tryblidiidae.

PilinaW
Pilina

Pilina is an extinct genus of paleozoic monoplacophorans in the family Tryblidiidae.

Pilina solariumW
Pilina solarium

Pilina solarium is an extinct species of a paleozoic Silurian monoplacophoran. It was first named as Palaeacmaea solarium and described by Gustaf Lindström from Silurian of Gotland in Sweden in 1884.

Pilina unguisW
Pilina unguis

Pilina unguis is an extinct species of Paleozoic Silurian monoplacophoran. It was first named as Tryblidium unguis and described by Gustaf Lindström in Latin from the Silurian deposits of Gotland in Sweden, in 1880.

TryblidiidaeW
Tryblidiidae

Tryblidiidae is an extinct family of paleozoic monoplacophorans in the superfamily Tryblidioidea.

TryblidiumW
Tryblidium

Tryblidium is a paleozoic genus of Ordovician and Silurian monoplacophorans.

Tryblidium reticulatumW
Tryblidium reticulatum

Tryblidium reticulatum is an extinct species of a paleozoic Silurian monoplacophoran.