Modell, H. 1957. Die fossilen Najaden Nordamerikas. Archiv für Molluskenkunde 86: 183-200. Available electronically.
Modell, 1957. Arch. Moll. 86: 189.
Modell, 1964. Arch. Moll. 93: 90.
(new name for Loxopleurus Meek, 1871)
Type species: Unio belliplicatus Meek, 1870 = Protamblema belliplicatus
‘Pilsbry in Wanner’ of Authors.
Henderson, 1935. GSA, Spec. Pap. 3: 62.
Modell, 1957. Arch. Moll. 86: 185.
(error for Mycetopoda diluculi Pilsbry in Wanner, 1921)
Modell, 1957. Arch. Moll. 86: 189.
(new name for Loxopleurus belliplicatus MacNeil, 1935)
MacNeil, 1935. Jour. Paleont. 9: 15, pl. 5, fig. 5 [as ‘Unidentified fragments probably related to the Quadrula group’].
Modell, 1957. Arch. Moll. 86: 191.
‘Whiteaves’ Modell, 1957. Arch. Moll. 86: 187.
(error for Unio nanaimoensis Whiteaves, 1901)
‘MacNeil’ Modell, 1957. Arch. Moll. 86: 190.
(error for Pliconaias popenoei Marshall, 1929)
‘Meek & Hayden’ Modell, 1957. Arch. Moll. 86: 192.
(error for Unio subspatulata Meek & Hayden, 1857)
‘Russel’ Modell, 1957. Arch. Moll. 86: 194.
(error for Unio tyrrelli Russell, 1931)
+ Unio vetustus White, 1877
+ Cypricardites angustatus Lesley, 1889
+ Unio danae Meek & Hayden, 1860
+ Unio deweyanus Meek & Hayden, 1857
+ Gonidea coalingensis cooperi Arnold, 1909
+ Margaritana subangulata Cooper, 1894
+ Unio petrinus White, 1876
+ Unio gibbosoides Whitfield, 1907
+ Unio rectoides White, 1886
+ Loxopleurus belliplicatus MacNeil, 1935