Copper (2002) in Williams, et al. (2002 Treatise volume) first reranked the genus as a subgenus of Atrypoidea
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Full reference: A. Williams, C. H. C. Brunton, S. J. Carlson, F. Alvarez, R. B. Blodgett, A. J. Boucot, P. Copper, A. S. Dagys, R. E. Grant, Y.-G. Jin, D. I. MacKinnon, M. O. Mancenido, E. F. Owen, J.-Y. Rong, N. M. Savage and D.-L. Sun. 2002. Part H Brachiopoda (revised): Volume 4, Rhynchonelliformea (part). Treatise on Invertebrate Paleontology H(4):921-1688
Parent taxon: Atrypoidea according to A. Williams et al. 2002
Sister taxa: Atrypidae, Atrypinidae, Atrypoidea latilingulata, Atrypoidea scheii, Lissatrypidae, Zygospiridae
Subtaxa: Atrypoidea (Atrypoidea) australis Atrypoidea (Atrypoidea) prunum
Type: Meristina australis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of Australia (8 collections), Canada (3: Nunavut), Estonia (8), Latvia (3), Lithuania (20), the Russian Federation (11), Sweden (1), Ukraine (5), United States (1: California)
Total: 60 collections including 68 occurrences