Traits taxon details
original description
Girty, G. H. (1912). On some invertebrate fossils from the Lykins Formation of eastern Colorado. <em>Annals of the New York Academy of Sciences.</em> 22(1): 1-8., available online at https://doi.org/10.1111/j.1749-6632.1912.tb55157.x page(s): 3 [details] 
basis of record
Ding, B.-L.; Liu, L.; Li, J.-H.; Liang, Z.-J. (1982). Lamellibranchiata. In: Nanjing Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of East China. Part 2, Late Paleozoic. Geological Publishing House, Beijing, pp. 307-323. [details] Available for editors 
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