Bellucci, L.; Sardella, R.; Rook L. 2015. Large mammal biochronology framework in Europe at Jaramillo – The Epivillafranchian as a formal biochron. Quaternary International 389: 84-89, 2 figs, 1 tab [. doi.org/10.1016/j.quaint.2014.11.012] { copied = true; setTimeout(() => copied = false, 10000); }).catch(err => { console.error('Failed to copy:', err); }); " type="button" :class="copied ? 'bg-secondary border-secondary' : 'border-primary hover:bg-primary'" class="group lg:min-w-64 flex items-center justify-between gap-5 border border-solid px-5 py-2 cursor-pointer transition-colors"> PDF download available