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
North Sea Compilation	Isthmocystis distincta	Costa and Davey, 1992	0 in amm_b_Speetoniceras inversum	130.91	39.363168563636364
North Sea Compilation	Isthmocystis distincta	Riding and Thomas, 1992	0 in amm_b_Galbanites kerberus	144.52	39.422578533333336
Haldager 1	Isthmocystis distincta	Davey, 1982	0 in amm_b_Galbanites kerberus	144.52	43.98550942222222
Speeton	Isthmocystis distincta	Davey, 2001	0.55 in amm_b_Endemoceras regale	131.315	40.7229609
Speeton	Isthmocystis distincta	Davey, 2001	0.5 in amm_b_Speetoniceras inversum	130.425	40.86115087499999
Q13_14	Isthmocystis distincta	Duxbury, 2001	0.15 in amm_b_Milanowskia speetonensis	129.772	45.30075151636364
Volga Basin	Isthmocystis distincta	Harding et al., 2011	0.67 in amm_r_Virgatites virgatus	144.84539999999998	46.697318147111105
Central Danish Trough	Isthmocystis distincta	Heilmann-Clausen, 1987	0 in amm_b_Galbanites kerberus	144.52	42.896880088888885
Hold With Hope	Isthmocystis distincta	Nøhr-Hansen et al., 2020	0.75 in stage_Tithonian	144.635	53.2139816

Histogram