1935Eutretocystis acutirostris sp. nov. — Phleger, pp. 201, fig. 1:10
2016Echinoencrinites Meyer, 1826 — Paul & Rozhnov, pp. 266
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.