1860Sphenocrinus obtusus — Eichwald, pp. 661, fig. 31:23,42,45,46,48,49
1964Sphenocrinus obtusus Eichwald,1860 — Yeltyschewa, pp. 61, fig. II 1-8; IV 25
Selection of related publications
Yeltyscheva, R. S. 1964.
Stebli ordovikskih morskih lilij Pribaltiki (nižnij ordovik).Voprosy paleontologiiIV,
59-82.
Eichwald, E. 1856.
Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode. (Fortsetzung).Bulletin of Moscow Society of Naturalists. Geology29,
1,88-127.