id	keyword
amq-646	et al
amq-646	section
amq-646	pleistocene
amq-646	boundary
amq-646	pliocene
amq-646	rio
amq-646	fig
amq-646	quaternary
amq-646	mediterranean
amq-646	calabrian
amq-646	italy
amq-646	vrica
amq-646	hilgen
amq-646	monte
amq-646	stratigraphy
amq-646	gssp
amq-646	sprovieri
amq-646	nicola
amq-646	record
amq-646	rio et
amq-646	time
amq-646	stratotype
amq-646	neogene
amq-646	san
amq-646	stage
amq-646	capraro
amq-646	lourens
amq-646	southern