| Original name | : | |
Rafinesque, 1815. Analyse de la nature: 148. ["Placunia"]. |
| Subsequent spelling | : | |
Gray, J.E. 1840b. Syn. Cont. Brit. Mus. (ed. 42): 142 ("family of Placunidæ"), 151 ("Fam. 4. Placunidæ."). ≡
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| Isonym (name, rank & spelling) | : | |
Yonge, C.M. 1977. Phil. Trans. R. Soc. Lond. (B) 276 (950): 515-516 ("new proposed family"); title ("Fam. Nov.").
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