Brachiopoda
Family

Grorudiidae Cocks et Rong, 1989

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Selection of related publications
Madison, A. A. 2012. Formation of Cardinal Process in Ordovician Strophomenids.Paleontological Journal 46 , 12,1362-1374. DOI:10.1134/S0031030112120039
Hints, L., Harper, D. A. T. 2008. The brachiopods Alwynella and Grorudia: homeomorphic plectambonitoids in the Middle and Upper Ordovician of Baltoscandia.Earth and Environmental Science Transactions of the Royal Society of Edinburgh 98 , 3-4,271-280. DOI:10.1017/S1755691007080358
List of species
1. Grorudia glabrata Spjeldnaes, 1957 | Kukruse StageHaljala Stage
2. Grorudia morrisoni Hints et Harper, 2008 | Uhaku StageHaljala Stage