Category
page 1Paleozoic echinoderms of Europe
Stenaster
Stenaster is an extinct genus of brittle stars that lived from the Ordovician to the Silurian.
Cyathocrinites
Cyathocrinites is an extinct genus of crinoids that lived from the Early Silurian to the Late Permian in Europe and North America.
Archaeocidaris
Archaeocidaris is an extinct genus of echinoid that lived from the Late Devonian to the Late Permian. Its remains have been found in Africa, Europe, and North America.
thumb|left|Archaeocidaris plates and spines from the Bird Spring Formation (Carboniferous) exposed in Kyle Canyon, Spring Mountains, southern Nevada.