1. The Triassic–Jurassic boundary in the Junggar Basin (NW-China)—preliminary palynostratigraphic results;Ashraf;Acta Palaeobotanica Suppl.,1999
2. An anatomically preserved stem from the Carboniferous of Gondwana: Phyllocladopitys petriellae Brea and Césari, sp. nov;Brea;Rev. Palaeobot. Palynol.,1995
3. Ecological reconstruction of a mixed Middle Triassic forest from Argentina;Brea;Alcheringa,2008
4. Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina): constraints for early Paleogene paleoclimate;Brea;Geol. Acta,2011
5. A possible nonmarine GSSP for the Permian–Triassic boundary;Cheng;Albertiana,1993