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	Heslertonia heslertonensis	Costa and Davey, 1992	0.5 in amm_b_Deshayesites deshayesi	119.53999999999999	42.47270556666667
North Sea Compilation	Heslertonia heslertonensis	Costa and Davey, 1992	0 in amm_b_Peregrinoceras albidum	137.81	39.471718100000004
Haldager 1	Heslertonia pellucida	Davey, 1982	0.5 in amm_b_Peregrinoceras albidum	137.2	43.80333088888889
Haldager 1	Heslertonia heslertonensis	Davey, 1982	0 in amm_b_Stolcoceras tuberculatum	133.09	43.6858522
Isle of Wright	Heslertonia heslertonensis	Duxbury, 1983	0.4 in amm_b_Deshayesites deshayesi	119.626	40.327053029999995
Q13_14	Heslertonia heslertonensis	Duxbury, 2001	0.2 in amm_b_Deshayesites deshayesi	119.798	48.020662736666665
Central Danish Trough	Heslertonia heslertonensis	Heilmann-Clausen, 1987	0.5 in amm_b_Deshayesites deshayesi	119.53999999999999	45.86908866666667
Central Danish Trough	Heslertonia heslertonensis	Heilmann-Clausen, 1987	0 in amm_b_Peregrinoceras albidum	137.81	42.89237693333333
765	Heslertonia striata	Helby and McMinn, 1992	0 in nan_n_CC7b	119.40135000000001	-51.25782725225
Rio Argos	Heslertonia heslertonensis	Leereveld, 1997a	0.95 in amm_t_Crioceratites loryi	130.945	24.275147844868343
Broyon	Heslertonia heslertonensis	Monteil, 1992	0.25 in amm_t_Saynoceras verrucosum	135.1875	31.400450208333332
Boyarka	Heslertonia heslertonensis	Shulgina et al., 1994	0.5 in amm_s_Unzoned	136.07	68.95111628181819
Boyarka	Heslertonia heslertonensis	Shulgina et al., 1994	0.5 in amm_s_Unzoned	136.07	68.95111628181819

Histogram