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. Stratigraphy of Ordovician Bryozoa from Estonia. Kandidaadi dissertatsioon, 3 köidet (I, II, III), pp. 1-852.
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