PANGAEA is hosting YOPP data. Information on these datasets are regularly harvested from the YOPP Data Portal and ingested. YOPP datasets hosted by PANGAEA are attached to the YOPP project which is available at https://www.pangaea.de/?f.project=YOPP. Several of the datasets have parent/child relationships. Maintenance of these parent/child relationships is attempted in the searchable YOPP catalog.