Geoff Renshaw ; with contributions from Norman Ireland. Peter Treadway with contributions from Michael C. S. Wong. Jan Zalasiewicz ; with contributions from Kim Freedman. Andrew Thomas with contributions from Sandra Brosnan Vanessa Remington with contributions from Sally Goodsir George Miles ; with contributions from Abe Aronow [and 16 others]. Jonathan Garner ; with contributions from Vincent Chan ... [et al. with contributions from Markus Bestig