Dystactella valvulus (Hall and Whitfield, 1872)

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 : 33

Dystactella valvulus (Hall and Whitfield, 1872)

Remarks. Reviewed by Pojeta (1988, p. 217). Hall (1885) placed Yoldia? vetusta Hall and Whitfield in synonymy with Solemya (Janeia) vetusta Meek.

Pojeta (1988, p. 217) placed Hall’s (1885) examples of Dystactella vetusta (Meek) in Dystactella valvulus (Hall and Whitfield) . See D. vetusta

(above).

non 1871 Solemya (Janeia) vetusta Meek , p. 66 [description only; no figure]; Devonian, Corniferous Group, Dublin, Franklin Co., Ohio .

1872 Yoldia? valvulus Hall and Whitfield (?Hall and Whitfield), p. 190 [description only; figures published in Hall and Whitfield, 1875, pl. 11, figs. 18-20]; Middle Devonian, Hydraulic Beds near Louisville, Kentucky.

non 1873 Solemya (Janeia) vetusta Meek ; Meek, p.

206, pl. 18, fig. 4 [Pr1, Ne]; Devonian, Corniferous Group, Dublin, Franklin Co., Ohio .

1875 Yoldia? valvulus Hall and Whitfield (?Hall and Whitfield), pl. 11, figs. 18-20 [Pc, Ne; figures to accompany description in Hall and Whitfield, 1872, p. 190].

1883 Yoldia? valvulus Hall and Whitfield (?Hall and Whitfield); Hall, pl. 47, figs. 53-55 [Pc, Ne; figures copied from Hall and Whitfield, 1875, pl. 11, figs. 18-20].

1885 Solemya (Janeia) vetusta Meek ; Hall, p. 463, pl. 47, figs. 53-55 [Pc, Ne; figures copied from Hall and Whtifield, 1875, pl. 11, figs. 18- 20]; Middle Devonian Hamilton Group, near Louisville, Kentucky; pl. 94, fig. 10 [Prs, Ne]; Hamilton Group, Charlestown, Indiana.

1889 Yoldia? valvulus Hall and Whitfield (?Hall and Whitfield); Nettleroth, p. 223, pl. 4, figs. 4, 5 [Pc, Pr0, Ne]; Devonian, from the cherty layers above the Hydraulic Limestone, Jefferson Co., Kentucky , and Clark Co., Indiana .

1944 Solemya? vetusta Meek ; Shimer and Shrock (?Shimer and Shrock), p. 369, pl. 44, figs. 1, 2 [figures copied from Hall, 1885, pl. 47, figs. 53, 55], Middle Devonian (Onondaga-Hamilton), New York, Pennsylvania, Ohio, Indiana, Kentucky.

1988 Dystactella valvulus (Hall and Whitfield) ; Pojeta, p. 217, pl. 10, figs. 1-4 [Prs, Pr1, Ne; these specimens used by Nettleroth (1889) for his description and figures]; Middle Devonian (Lower Givetian), Silver Creek Limestone Member, Falls of the Ohio , Clark Co., Indiana .