apiocrinoids

Updated: May 14, 2025

The close affinities of Rhizocrinus with Apiocrinoids are further exemplified by the fact that when the animal dies, it casts off its arms, like Apiocrinus, the head of which is generally found without arms. And now the question may be asked, what is the meaning of the occurrence of these animals in deep waters at the present day, when, in former ages, similar types inhabited shallow seas?

Elizabeth Cabot Cary Agassiz - Louis Agassiz: His Life and Correspondence