Best Salenioid
Acrosalenia hemicidaroides is a Jurassic fossil sea urchin described by Wright in 1851 and now often treated as Perisalenia hemicidaroides.
Salenia goesiana is not readily verifiable in current major sea urchin references; Salenia belongs to the distinctive order Salenioida.
Salenia cincta is a salenioid sea urchin now usually placed in Bathysalenia, notable as a Japanese abyssal saleniid described by A. Agassiz and H.L. Clark in 1907.
Salenocidaris hastigera is a deep-sea saleniid urchin in Salenocidaris, a genus named by A. Agassiz in 1869 and notable for abyssal regular urchins.
Salenocidaris miliaris is a deep-sea saleniid sea urchin, notable as one of the living Salenocidaris species listed from A. Agassiz 1898 material.
Salenia pattersoni is not readily verifiable in current major sea urchin references; Salenia is a salenioid genus with many fossil species.
