Possessory action for recovery of possession filed by the Instituto Chico Mendes de Conservação da Biodiversidade – ICMBIO. "It is not appropriate to dismiss the proceedings without resolution on the merits on the grounds that there is a possibility of settlement of the dispute between federal entities through the Câmara de Conciliação e Arbitragem da Administração Federal. The lawsuit was filed against the indigenous group and not, strictly speaking, against FUNAI, whose participation occurs in the capacity of assistant to litigant. Accordingly, any measures taken would not have binding effect on the indigenous group":