Roberto Iannuzzi is a Brazilian biologist and holds a PhD in Geosciences from the Federal University of Rio Grande do Sul (UFRGS). He is currently a Full Professor at UFGRS, where he also coordinates the Institute of Geosciences Research Committee. He was the president of the Brazilian Society of Paleontology from 2009 to 2013 and has published over 80 articles in peer-reviewed journals. He has also published some books in Portuguese, such as Paleobotânica (2005) and Antes dos Dinossauros (2004) (Before the dinosaurs).  Ronny Rößler is a German geologist, holds a PhD from Technical University Bergakademie Freiberg where he became an honorary professor in 2017. Director of the Museum of Natural History at Chemnitz since 1995, he is also one of the editors-in-chief of the journal Palaeontographica B and served in the advisory board of the Paleontological Society from 2008 to 2010.  Lutz Kunzmann is a German paleontologist and holds a PhD from the Humboldt University. Head of section and curator of paleobotany at Senckenbert Natural History Collections since 1994, he is currently the treasurer of the International Organisation of Palaeobotany and one of the editors-in-chief of Palaeontographica B.