Prehistoric crinoid genera

Pentacrinites is an extinct genus of crinoids that lived from the Hettangian to the Bathonian of Asia, Europe, North America, and New Zealand. Their stems are pentagonal to star-shaped in cross-section and are the most commonly preserved parts. Pentacrinites are commonly found in the Pentacrinites Bed of the Early Jurassic (Lower Lias) of Lyme Regis, Dorset, England. Pentacrinites can be recognized by the extensions (or cirri) all around the stem, which are long, unbranching, and of increasing length further down, the very small cup and 5 long freely branching arms.

Uintacrinus ("crinoid from the Uinta Mountains") is an extinct genus of crinoids from the Cretaceous of Kansas. It was unusual among crinoids because it had no stalk, and probably floated above the seafloor. It lived in the Western Interior Seaway. This crinoid was a colonial animal with ten long arms each that it used to capture prey. left|thumb|Block at the American Museum of Natural History|AMNH preserving at least 65 U. socialis individuals. Collected in [[Kansas.]]

Saccocoma is an extinct genus of crinoids that lived from the Late Jurassic to the Early Cretaceous in Europe and North America. It contains at least two species.

Encrinus is an extinct genus of crinoids, and "one of the most famous". It lived during the Late Silurian-Late Triassic, and its fossils have been found in Europe.

Cyathocrinites is an extinct genus of crinoids that lived from the Early Silurian to the Late Permian in Europe and North America.

Pterocoma is an extinct genus of crinoids from the Late Jurassic of Europe.

Calceolispongia (literally "shoe sponge") is a diverse genus of cladid crinoids that lived along the shores of eastern Pangaea that correspond to Timor and Western Australia, today.