Brachiopoda
Family

Cremnorthidae Williams, 1963

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Selection of related publications
Hints, L. 1973. New Orthacean Brachiopods from the Middle Ordovician of the East Baltic area and Sweden. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 22, 3, 248-256. DOI:10.3176/chem.geol.1973.3.10
Hints, L. M. 1968. Cremnorthis and Paurorthis (Brachiopoda) in the Middle Ordovician of Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 17, 4, 386-392. DOI:10.3176/chem.geol.1968.4.09
List of species
1. Cremnorthis parva Williams, 1963 | Keila StageOandu Stage
2. Cremnorthis uhakuana Hints, 1968 | Uhaku StageIdavere Substage
3. Septorthis engurensis Hints, 1973 | Idavere SubstageKeila Stage