1. Instituto de Geociencias CSIC‐UCM 28040 Madrid Spain
2. 202 chemin de Cabanis 34730 Prades‐le‐Lez France
3. UCD School of Geological Sciences University College Dublin Belfield Dublin 4 Ireland
4. Géosciences Environnement Toulouse (OMP) Université de Toulouse, (UPS) Av. Edouard Belin 14 F‐31400 Toulouse France
5. Institute of Paleobiology ul. Twarda 51/55 PL‐00‐818 Warsaw Poland
6. 1 rue des Tilleuls 59152 Gruson France