Traits taxon details
original description
Holmer, L. E.; Popov, L. E.; Koneva, S.; Bassett, M. G. (2001). Cambrian–early Ordovician brachiopods from Malyi Karatau, the western Balkhash region, and Tien Shan, central Asia. <em>Special Papers in Palaeontology.</em> 65: 1-180. [details]
additional source
Holmer, L. E.; Biernat, G. (2002). Lingulate brachiopods from Lower Ordovician (Tremadoc) chalcedonites, Holy Cross Mountains, Poland. <em>Acta Palaeontologica Polonica.</em> 47(1): 141-156. [details]
additional source
Holmer, L. E.; Popov, L. E.; Ghobadi Pour, M.; Zhang, Z.; Zhang, Z. (2017). Unusual pitted Ordovician brachiopods from the East Baltic: the significance of coarsely pitted ornamentations in linguliforms. <em>Papers in Palaeontology.</em> 3(3): 387-399., available online at https://doi.org/10.1002/spp2.1080 [details]
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