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	Taxon	Source	Calibration	Age (Ma)	Paleolatitude
LO	Scotian Margin	Sirmiodinium grossii	Williams et al., 1993	0.2 in stage_Aptian	119.76	37.639
FO	Scotian Margin	Sirmiodinium grossii	Williams et al., 1993	0.85 in stage_Bathonian	165.722	29.678
LO	North Sea Compilation	Sirmiodinium grossii	Copestake and Partington, 2023	0.75 in amm_b_Quenstedtoceras lamberti	161.76	40.125
FO	North Sea Compilation	Sirmiodinium grossii	Copestake and Partington, 2023	0.6 in amm_b_Procerites progracilis	166.604	40.012
LO	North Sea Compilation	Sirmiodinium grossii	Costa and Davey, 1992	0.5 in amm_b_Deshayesites deshayesi	119.54	42.207
FO	North Sea Compilation	Sirmiodinium grossii	Riding and Thomas, 1992	0 in amm_b_Clydoniceras discus	165.5	40.038
LO	Australia synthesis	Sirmiodinium grossii	Helby et al., 1987	0.2 in stage_Berriasian	142.02	-50.338
FO	Australia synthesis	Sirmiodinium grossii	Helby et al., 1987	0.5 in stage_Tithonian	146.17	-48.166
LO	Arctic Basin	Sirmiodinium grossii	Williams et al., 2025	1 in stage_Barremian	121.4	72.07
LO	Arctic Basin	Sirmiodinium grossii	Williams et al., 2025	0 in stage_Aptian	121.4	72.07
LO	Caucasus	Sirmiodinium grossii	Smelror and Lominadze, 1989	1 in amm_b_Kosmoceras jason	163.3	41.178
FO	Champagne	Sirmiodinium grossii	Fauconnier, 1995	0 in amm_b_Kosmoceras jason	163.47	37.373
LO	Champagne	Sirmiodinium grossii	Fauconnier, 1995	1 in amm_b_Ringsteadia pseudocordata	154.78	36.871
FO	Czestochowa	Sirmiodinium grossii	Poulsen, 1998	0.75 in amm_t_Procerites aurigerus	167.12	42.136
LO	Czestochowa	Sirmiodinium grossii	Poulsen, 1998	0.5 in amm_b_Sigaloceras calloviense	163.67	41.688
FO	Isle of Skye	Sirmiodinium grossii	Riding and Thomas, 1997	0.33 in amm_b_Macrocephalites herveyi	165.062	43.125
LO	Isle of Skye	Sirmiodinium grossii	Riding and Thomas, 1997	0.5 in amm_b_Rasenia cymodoce	152.72	44.49
FO	ODP 765	Sirmiodinium grossii	Helby and McMinn, 1992	0 in nan_n_CC4	132.966	-51.507
LO	ODP 765	Sirmiodinium grossii	Helby and McMinn, 1992	1 in mag_M1n	121.4	-49.352
FO	Northwest Australia compilation	Sirmiodinium grossii	Riding et al., 2010	0.3 in stage_Callovian	164.162	-40.585
FO	Dorset-Yorkshire	Sirmiodinium grossii	Woollam and Riding, 1983	0.5 in amm_b_Clydoniceras discus	165.395	38.491
LO	Central Danish Trough	Sirmiodinium grossii	Heilmann-Clausen, 1987	0 in amm_b_Leymeriella tardefurcata	111.27	47.394
LO	DSDP 534	Sirmiodinium grossii	Habib and Drugg, 1983	0.25 in mag_M19n	143.464	23.838
FO	DSDP 534	Sirmiodinium grossii	Habib and Drugg, 1983	0.5 in mag_M24r	151.504	22.416
FO	Barentz Sea	Sirmiodinium grossii	Smelror, 1994	0.5 in stage_Bathonian	166.73	64.868
FO	Milne Land	Sirmiodinium grossii	Smelror, 1988a	0 in amm_b_Clydoniceras discus	165.5	50.509
LO	Milne Land	Sirmiodinium grossii	Smelror, 1988a	1 in amm_b_Quenstedtoceras mariae	159.66	50.981
FO	Vega	Sirmiodinium grossii	Århus et al., 1989	0.05 in amm_b_Peltoceras athleta	162.887	53.555
FO	Boyarka	Sirmiodinium grossii	Shulgina et al., 1994	0.1 in amm_s_Unzoned	137.286	68.777
FO	Kandern	Sirmiodinium grossii	Dimter and Smelror, 1990	0.8 in amm_b_Sigaloceras calloviense	163.55	37.456