Brachiopoda

Orthidiellidae Ulrich et Cooper, 1936

Selection of related publications
Egerquist, E. & Holmer, L. E. 2006. Early-Middle Ordovician (Billingen- Volkhov stages) Orthide and Protorthide brachiopods from the East Baltic. GFF 128, 4, 339-348. DOI:10.1080/11035890601284339