Maceral

https://www.wikidata.org/wiki/Q1237331

Field Hierarchy

Parent
Biology 34.8M papers	Chemistry 28.4M papers	Engineering 23.9M papers	Organic chemistry 12.8M papers
Geography 11.1M papers	Geology 9.1M papers	History 7M papers	Archaeology 6.3M papers
Paleontology 5.3M papers		Waste management 1.5M papers
Current
Maceral 4,538 papers
Child
Inertinite 2,294 papers		Liptinite 1,073 papers

Trends

Notes

History