Data plotted here is from DINOSTRAT, available via Zenodo: DOI: 10.5281/zenodo.7791273. Please cite Bijl, 2022 https://doi.org/10.5194/essd-14-579-2022 when using this data.


Plots are based on the following information

Location	Taxon	Source	Calibration	Age (Ma)	Paleolatitude
Arctic Basin	Ellipsoidictyum cinctum	Bujak et al., 2022	0 in amm_b_Oxycerites orbis	165.72	73.10161685714286
North Sea Compilation	Ellipsoidictyum imperfectum	Costa and Davey, 1992	1 in amm_b_Arrhaphoceras briacensis	100.25	45.085641875
North Sea Compilation	Ellipsoidictyum imperfectum	Costa and Davey, 1992	1 in amm_b_Epicheloniceras martinoides	117.53	43.104612716666665
Haldager 1	Ellipsoidictyum cinctum	Davey, 1982	0.5 in amm_b_Glaucolithites glaucolithus	144.815	43.992851316666666
Haldager 1	Ellipsoidictyum cinctum	Davey, 1982	1 in amm_b_Surites icenii	138.25	43.82946305555555
Scotian Margin	Ellipsoidictyum cinctum	Williams et al., 1993	0.15 in stage_Bathonian	167.738	29.009380922857144
Scotian Margin	Ellipsoidictyum cinctum	Williams et al., 1993	0.55 in stage_Kimmeridgian	151.733	32.91162365666666
Rio Argos	Ellipsoidictyum imperfectum	Leereveld, 1997a	0.5 in amm_t_Pleisiospitidiscus ligatus	128.405	24.79217684454602
Rio Argos	Ellipsoidictyum imperfectum	Leereveld, 1997a	1 in amm_t_Subsaynella sayni	128.82	24.688334766958512
Czestochowa	Ellipsoidictyum cinctum	Poulsen, 1998	0.2 in amm_t_Clydoniceras discus	165.458	41.82831650666667
Caucasus	Ellipsoidictyum cinctum	Smelror and Lominadze, 1989	1 in amm_b_Kosmoceras jason	163.3	37.5975
Zaragoza	Ellipsoidictyum cinctum	Smelror et al., 1991	0.5 in amm_t_Perisphinctes bifurcatus	157.25	29.36530625
Milne Land	Ellipsoidictyum cinctum	Smelror, 1988a	1 in amm_b_Oxycerites orbis	165.5	50.509439375
Kong Karls Land	Ellipsoidictyum cintum	Smelror, 1988b	0.5 between 0 amm_b_Quenstedtoceras lamberti 1 amm_b_Quenstedtoceras mariae	161.055	67.01490723214286
Kong Karls Land	Ellipsoidictyum cintum	Smelror, 1988b	0.18 between 0 amm_b_Macrocephalites herveyi 1 amm_b_Peltoceras athleta	164.7788	66.55282355
Dorset-Yorkshire	Ellipsoidictyum spp.	Woollam and Riding, 1983	0 in amm_b_Garantiana garantiana	169.27	38.1586258

Histogram