id	keyword
gc-628	planktonic
gc-628	santonian
gc-628	zone
gc-628	foraminiferal
gc-628	dicarinella
gc-628	section
gc-628	campanian
gc-628	et al
gc-628	sigalia
gc-628	cretaceous
gc-628	globotruncana
gc-628	croatica
gc-628	tunisia