A similar cladogram was published in 2007, inverting the placement of "Goura" and "Didunculus" and including the pheasant pigeon ("Otidiphaps nobilis") and the thick-billed ground pigeon ("Trugon terrestris") at the base of the clade. Based on behavioural and morphological evidence, Jolyon C. Parish proposed that the dodo and Rodrigues solitaire should be placed in the Gourinae subfamily along with the "Groura" pigeons and others, in agreement with the genetic evidence. In 2014, DNA of the only known specimen of the recently extinct spotted green pigeon ("Caloenas maculata") was analysed, and it was found to be a close relative of the Nicobar pigeon, and thus also the dodo and Rodrigues solitaire.