Bryozoa

Parvohallopora undulata (Ulrich, 1886)

Synonymy list
1886     Callopora undulata — Ulrich, pp. 95
1893     Callopora undulata — Ulrich, pp. 279, fig. 22:24-31
1911     Hallopora undulata (Ulrich) — Bassler, pp. 332, fig. text fig. 208
1953     Hallopora undulata (Ulr.) — Modzalevskaya, pp. 105
1970     Hallopora undulata (Ulrich) — Rõõmusoks, pp. 327, fig. table 17
1978     Hallopora undulata (Ulrich, 1886) — Astrova, pp. 70
1987     Hallopora wesenbergiana wesenbergiana (Dybowski) — Pushkin, pp. 154
2009     Parvohallopora undulata — Pachut & Fisherkeller, pp. 404
2013     Hallopora undulate (Ulrich, 1886) — Pushkin & Pushkina, pp. 9
Selection of related publications
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I.
Männil, R. M. 1959. On Ordovician stratigraphy and bryozoans of Estonia.
Bassler, R. S. 1911. The Early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the US National Museum 77, 1-382.
References based on distribution