-BICA SÃO TOMÉ, A NEW FOSSILIFEROUS SITE FOR THE LOWER TRIASSIC OF SOUTHERN BRAZIL. Bica São Tomé, a new fossiliferous locality for the Sanga do Cabral Formation is described from southern Brazil. It consists in orange and reddish fine sandstones with sandy and calcareous concretions and intercalated fossiliferous intraformational conglomerates. This Lower Triassic locality is particularly interesting due to very well preserved and partially articulated specimens of continental tetrapods, an unusual feature in this unit, since the fossils in other outcrops are mostly disarticulated. Temnospondyl amphibians, procolophonoid and probable archosauromorph reptiles have been found in this new Lower Triassic locality. Further studies in this locality will allow the complement and a better acknowledged of the affinities of the Sanga do Cabral fauna with those from the basal Triassic Gondwanan and Laurasian.

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For the first time insects and crustaceans from the Mangrullo Member of the Melo Formation (Permian) of Uruguay are registered. The insects belong to the species of Ordo Hemiptera – Sub-Ordo Homoptera – Paracicadopsis mendezalzolai gen. et sp. nov. of the family Cicadopsyllidae Martinov, 1931 and from Ordo Perlaria Perlapsocus formosoi gen. et sp. nov. of the new Perlapsocidae family. Associated to these insects, crustaceans belonging to the Ordo Pygocephalomorpha were for the first time found and are study, beside fish scales, plant remains and Mesosaurideos already registered.