id	keyword
geusb-8342	zone
geusb-8342	et al
geusb-8342	fig
geusb-8342	dinoflagellate
geusb-8342	core
geusb-8342	ammonite
geusb-8342	upper
geusb-8342	greenland
geusb-8342	jurassic
geusb-8342	formation
geusb-8342	sample
geusb-8342	cretaceous
geusb-8342	slide
geusb-8342	rødryggen-1
geusb-8342	east
geusb-8342	interval
geusb-8342	member
geusb-8342	https://doi.org/10.34194/geusb.v55.8342
geusb-8342	villosa
geusb-8342	volgian
geusb-8342	alsen
geusb-8342	north
geusb-8342	bugt
geusb-8342	brorson
geusb-8342	bulletin
geusb-8342	cysts
geusb-8342	calcareous
geusb-8342	surlyk
geusb-8342	occurrence
geusb-8342	assemblage
geusb-8342	spp
geusb-8342	level
geusb-8342	boundary
geusb-8342	ryazanian
geusb-8342	base
geusb-8342	mguh
geusb-8342	material
geusb-8342	chronozone
geusb-8342	middle
geusb-8342	biostratigraphy
geusb-8342	nannofossil