FIGURE 3 in Twenty Years Online! A brief history of Palaeontologia Electronica

FIGURE 3. Research articles published in Palaeontologia Electronica for each year (2017 exclusive), expressed as a percentage of each palaeontological sub-discipline. This represents a somewhat more arbitrary (compared to Figure 2) assignment of each research article to one of 11 palaeontological sub-disciplines. This assignment is more arbitrary because many articles aren't easily categorised into a single sub-discipline and, depending on subject matter, the sub-disciplines themselves can overlap. Other articles, particularly highly technical articles, don't always fit so neatly within any strictly palaeontological sub-discipline. Nevertheless, primarily on the basis of article title, with reference to the abstract and keywords where necessary, each article has been assigned as Museum/Education, Micropalaeontology, Palaeobotany, Palynology, Invertebrate Palaeontology, Vertebrate Palaeontology, Taphonomy, Ichnology, Palaeoecology, Epistemology/Philosophy, and Stratigraphy/Geology.