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	Gongylodinium erymnoteichon	Riding and Thomas, 1992	1 in amm_b_Clydoniceras discus	165.29	39.94693105
North Sea Compilation	Gongylodinium erymnoteichon	Riding and Thomas, 1992	0 in amm_b_Hyperlioceras discites	170.9	39.7772005
Calvados	Gongylodinium erymnoteichon	Feist-Burkhardt and Monteil, 1997	0.75 in amm_b_Stephanoceras humphriesianum	169.82750000000001	35.923743825
Calvados	Gongylodinium erymnoteichon	Feist-Burkhardt and Monteil, 1997	0.9 in amm_b_Zigzagiceras zigzag	167.09	36.0342567
Czestochowa	Gongylodinium erymnoteichon	Poulsen, 1998	0.5 in amm_t_Cadomites bremeri	165.935	41.886580466666665
Czestochowa	Gongylodinium erymnoteichon	Poulsen, 1998	0.5 in amm_t_Procerites aurigerus	167.26999999999998	42.04964626666666
Boyarka	Gongylodinium spinoreticulatum	Shulgina et al., 1994	0.5 in amm_s_Unzoned	136.07	68.95111628181819

Histogram