Template:Clarke & Menzies, 1959
- Clarke, A.H., Jr. & Menzies, R.J. 1959. Neopilina (Vema) ewingi, a second living species of the Paleozoic class Monoplacophora. Science 129(3355): 1026–1027. DOI: 10.1126/science.129.3355.1026.b
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