Clinopistha truncata (Golfuss, 1840) Bailey, 2021

Bailey, Jack Bowman, 2021, The genera that never were: The impact of Janeia and Janacekia on phyletic and taxonomic relations within the Solemyidae (Bivalvia: Protobranchia), Palaeontologia Electronica (a 12) 24 (1), pp. 1-47 : 31

Clinopistha truncata (Golfuss, 1840) n. comb.

Remarks. Beushausen’s type ( Sanguinolaria truncata Goldfuss, 1840 ) is a generically indeterminate shell fragment. Useful if Beushausen’s (1895, pl.

26, figs. 4, 5) topotypes are given priority. Compares with certain examples of Clinopistha levis showing fine prosoponal radii, especially on the inner surface of the shell (e.g., Pojeta, 1988, pl. 9,

fig. 8; pl. 11, figs. 1-9).

? 1840 Sanguinolaria truncata Goldfuss , p. 279, pl.

159, fig. 13a, b; [gen. et sp. indet.; breviterminus encased in matrix; poorly exposed; possibly not a solemyid]; Devonian, Eifel.

? 1858b Edmondia? radiata Hall (?Hall); p. 716, pl. 29, fig. 3 [Pr1; = Clinopistha ; like C. levis Meek and Worthen (1870, p. 45) but fine prosoponal radii more pronounced; holotype lost]; Coal Measures (Pennsylvanian), Iowa.

p 1895 Janeia truncata (Goldfuss) ; Beushausen, p.

296, pl. 26, figs. 4, 5, [Pr1f; like C. levis but prosoponal radii more pronounced; non text-fig. 32, p. 297]; Devonian, Eifel and Gerolstein, Germany.

1930 Janeia truncata (Goldfuss) ; Quenstedt, pl. 1, figs. 4, 5, Middle Devonian, Gerolstein, Germany.

1969 Solemya (Janeia) truncata (Goldfuss) ; Cox, 1969, p. N243, fig. B1,1b (copy of Quenstedt, 1930, pl. 1, fig. 4).