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
Czestochowa	Impletosphaeridium varispinosum	Poulsen, 1998	1 in amm_t_Hecticoceras retrocostatum	165.5	41.83344666666667
Czestochowa	Impletosphaeridium varispinosum	Poulsen, 1998	0 in amm_b_Sigaloceras calloviense	163.87	41.634347600000005
North Sea Basin	Impletosphaeridium varispinosum	Copestake and Partington, 2023	1 in amm_b_Sigaloceras calloviense	163.47	43.17481802857143

Distribution


Histogram


Map