1. Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA. ()
2. Institut Català de Paleontologia Miquel Crusafont, Universitat Autònoma de Barcelona, Edifici ICTA-ICP, Campus de la UAB, c/ Columnes, s/n, 08193 Cerdanyola del Vallès, Barcelona, Spain.
3. University of Oregon, Eugene, OR 97403-1218, USA.
4. Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, USA.
5. Hunter College, City University of New York, 695 Park Avenue, New York, NY 10065, USA.