Figure 4 in How has our knowledge of dinosaur diversity through geologic time changed through research history?

Figure 4 Total dinosaur 'global' diversity patterns for (A) raw and (B) subsampled data. The vertical red lines represent major interval boundaries. Time stage abbreviations (in chronological order). N, Norian; R, Rhaetian, He, Hettangian; S, Sinemurian; P, Pliensbachian; T, Toarcian; A, Aalenian; Bj, Bajocian; B, Bathonian; C, Callovian; O, Oxfordian; K, Kimmeridgian; Ti, Tithonian; Be, Berriasian; V, Valanginian; Ha, Hauterivian; Ba, Barremian; Ap, Aptian; Al, Albian; Ce, Cenomanian; Tu, Turonian; Co, Coniacian; Sa, Santonian; Cam, Campanian; M, Maastrichtian. Vertical dashed red lines indicate boundaries between different periods (Triassic/Jurassic, Jurassic/Cretaceous, and Cretaceous/Paleogene). Full-size DOI: 10.7717/peerj.4417/fig-4