1. Centre de Recherche sur la Paléobiodiversité et les Paléoenvironnements, CR2P, UMR 7207, MNHN, UPMC, CNRS, Université Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, France
2. Birbal Sahni Institute of Palaeosciences, 53 University Road, Lucknow, India
3. UFRJ, 274 Av. Athos da Silveira Ramos, Maths and Natural Science Center, Department of Geology, University City, Rio de Janeiro, Ilha do Fundão, 21949-916, Brazil
4. UNESP (São Paulo State University), IGCE/UNESPetro. 13501-070 Rio Claro-SP, Brazil