Species

Helmersenia ladogensis (Jeremejew, 1856)

Synonymy list

1856 Siphonotreta ladogensis sp. nov. — Jeremejew , pp. 73, fig. 5a-c

1860 Helmersenia ladogensis (Jeremejew) — Pander , fig. 2:2-a-g

1861 Siphonotreta ladogensis — Eichwald , pp. 262

1969 Helmersenia ladogensis (Jeremejew, 1856) — Gorjansky , pp. 99, fig. 19:1-21

1973 Helmersenia cf. ladogensis (Jeremejew, 1856) — Biernat , pp. 110, fig. 33:1-7, text fig. 40

1989 Helmersenia ladogensis (Jeremejew, 1856) — Popov & Khazanovitch , pp. 135, fig. Pl. 12:10-15

2000 Helmersenia ladogensis (Jeremejew) — Holmer & Popov , pp. 143, fig. 79:3a-e

Selection of related publications

Nemliher, J., Kurvits, T., Kallaste, T., Puura, I. 2004. Apatite varieties in the shell of the Cambrian lingulate brachiopod Obolus apollinis Eichwald. Proceedings of the Estonian Academy of Sciences. Geology 53, 4, 246-256. DOI:10.3176/geol.2004.4.02

Kaljo, D., Borovko, N., Heinsalu, H., Khazanovich, K., Mens, K., Popov, L., Sergejeva, S., Sobolevskaya, R., Viira, V. 1986. The Cambrian-Ordovician boundary in the Baltic-Ladoga clint area (North Estonia and Leningrad Region, USSR). Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 35, 3, 97-108. DOI:10.3176/geol.1986.3.01

Gorjansky, V. J. 1969. Bezzamkovye brahiopody kembrijskih i ordovikskih otloženij severo-zapada Russkoj platformy. pp. 1-176. Nedra.

Classification

References based on distribution