1935Echinoencrinites sphaeroidalis sp. nov. — Phleger, pp. 198, fig. 1:2
Selection of related publications
Phleger, F. B. 1935.
Some Ordovician cystids from Russia.Bulletin of the Museum of Comparative Zoology. Harvard University Museum of Comparative ZoologyLXXVI,
5,193-201.