Data plotted here is from DINOSTRAT, available via Zenodo: DOI: 10.5281/zenodo.18375303. Please cite Bijl, 2022 https://doi.org/10.5194/essd-14-579-2022 when using this data.

Distribution


Plots are based on the following information

FO/LO	Location	Source	Calibration	Age (Ma)	Paleolatitude
FO	Calvados, France	Feist-Burkhardt and Monteil, 1997	0 in amm_b_Stephanoceras humphriesianum	170.09	35.913
FO	Volga Basin, Russia	Feist-Burkhardt, 1994	0.5 in amm_b_Pleuroceras spinatum	184.9	62.37
LO	Calvados, France	Feist-Burkhardt and Monteil, 1997	1 in amm_t_Stephanoceras humphriesianum	169.74	35.927
LO	Volga Basin, Russia	Feist-Burkhardt, 1994	0.75 in amm_b_Leioceras opalinum	173.2	56.494