The Urbino Summer School in Paleoclimatology… by PhD students Hennie Detlef and Amy Sparkes on October 14, 2015 astrochron biostratigraphy BUFI Cardiff University climate modelling ECORD K-T boundary Melanie Leng palaeoclimatology PETM Sev Kender Urbino Summer School in Palaeoclimatology USSP +