Selaginella and Desfontainia, are what kind of item?
Desfontainia Desfontainia is a genus of flowering plants placed currently in the family Columelliaceae, though formerly in Loganiaceae, Potaliaceae (now subsumed in Gentianaceae), or a family of its own, Desfontainiaceae.
Dosinia Dosinia is a genus of saltwater clams, marine bivalve molluscs in the family Veneridae, subfamily Dosiniinae . The shell of "Dosinia" species is disc-like in shape, usually white, and therefore is reminiscent of the shells of Lucinid bivalves.