Echinodermata

Protocrinites fragum Eichwald, 1856

Synonymy list
1846     Protocrinus oviformîs — Volborth, pp. 191, fig. 10:8-11
1856     Protocrinus fragum — Eichwald, pp. 122
1857     Protocrinus fragum — Eichwald, pp. 68
1860     Protocrinus fragum m. — Eichwald, pp. 621
1861     Protocrinites fagum m. — Eichwald, pp. 177
1899     Protocrinites fragum Eichw. 1860 — Jaekel, pp. 433, fig. V 1-5
1935     Protocrinus fragum Eichwald — Phleger, pp. 201
1956     Protocrinites fagum — Eichwald, pp. 122
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 Zoology LXXVI, 5, 193-201.
Jaekel, O. 1899. Stammesgesihichte der Pelmatozoen. Erster Band. Thecoidea und Cystoidea.
Eichwald, E. 1860. Lethaea Rossica ou Paléontologie de la Russie. Premier volume. Ancienne Période en deux sections. DOI:10.5962/bhl.title.52391
References based on distribution