SOLEMYIDAE, , Bailey, 2011

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 : 26

PALEOZOIC SOLEMYIDAE - REVIEW AND REVISION OF SELECTED TAXA

The following treatise is a preliminary assessment and taxonomic review of Paleozoic bivalves misclassified either as Janeia , Janacekia , or Solemya (including nomina vana variants, Solenomya or Solenimya ) based in part on the unsubstantiated assumption that among Paleozoic examples the primary ligament was set in internal chondrophores. Emphasis here is mostly on generic level evaluation and revision. Within synonymies, descriptive annotations and provenance are provided for most listings. The format in part follows recommendations of Matthews (1973) and Bengtson (1988). Publication dates given by de Ryckholt for various portions of his Mélanges Paléontologiques are revised based on Rosenberg and Petit (1987).

Abbreviations. Diagnostic character states observed: Bts = simple buttress; Dp = ligamental demipad; IG = internymphal gap; Le = ligament visibly external; Ne = nymphae external; PAe = posterior adductor entire; PP = traces of periostracal ‘awning’. Prosopon: Pc = comarginal lirae/rugae; Pc0 = comarginal elements lacking; Pr0 = radii absent or not observed; Pr1f = fine, closely spaced radii; Pr1 = radii weak or obsolescent; Pr2 = radii marked; Pr3 = radii strongly marked; Prs = radii with scalloped pattern.