Traits taxon details
original description
Rzhonsnitskaya, M. A. (1960). Order Atrypida, pp. 115-324. In: T. G. Sarycheva (ed.), Osnovy Paleontologii: Brachiopoda [Fundamentals of. Paleontology: Brachiopoda]. [details]
basis of record
Treatise on Invertebrate Paleontology. (1997-2007). Part H revised, Brachiopoda. <em>Geological Society of America, Boulder; and University of Kansas Press, Lawrence,.</em> vol. 1-6. [details]
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