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
Arctic Basin	Stephanelytron callovianum	Bujak et al., 2022	0 in amm_b_Proplanulites koenigi	164.6	73.21211285714286
Arctic Basin	Stephanelytron membranoideum	Bujak et al., 2022	0 in amm_b_Pictonia baylei	154.78	73.0867148
Arctic Basin	Stephanelytron membranoideum	Bujak et al., 2022	0 in amm_b_Aulacostephanus mutabilis	152.04	72.4259364
North Sea Compilation	Stephanelytron membranoideum	Costa and Davey, 1992	1 in amm_b_Epicheloniceras martinoides	117.53	43.104612716666665
North Sea Compilation	Stephanelytron spp.	Riding and Thomas, 1992	0.5 in amm_b_Aulacostephanus mutabilis	151.515	39.37135181666667
Haldager 1	Stephanelytron membranoideum	Davey, 1982	0 in amm_b_Galbanites kerberus	144.52	43.98550942222222
Haldager 1	Stephanelytron membranoideum	Davey, 1982	0 in amm_b_Galbanites kerberus	144.52	43.98550942222222
Kandern	Stephanelytron redcliffense	Dimter and Smelror, 1990	0.25 in amm_b_Kosmoceras jason	163.4275	37.369049185
Kandern	Stephanelytron scurburghense	Dimter and Smelror, 1990	0.25 in amm_b_Kosmoceras jason	163.4275	37.369049185
Scotian Margin	Stephanelytron spp.	Williams et al., 1993	0.6 in stage_Callovian	163.034	30.350242682857147
Scotian Margin	Stephanelytron spp.	Williams et al., 1993	0.2 in stage_Kimmeridgian	153.672	32.56701598666667
534	Stephanelytron scurburghense	Habib and Drugg, 1983	0.5 in mag_M24n	150.9853414648186	20.694712674654145
Volga Basin	Stephanelytron membranoideum	Harding et al., 2011	0 in amm_r_Virgatites virgatus	145.1	46.74877733333333
Central Danish Trough	Stephanelytron membranoideum	Heilmann-Clausen, 1987	1 in amm_b_Parahoplites nutfieldiensis	114.8	47.35207666666667
Quercy	Stephanelytron scurburghense	Ioannides et al., 1988	1 in amm_b_Aulacostephanus mutabilis	150.99	31.065956925000002
Rio Argos	Stephanelytron membranoideum	Leereveld, 1997b	1 in amm_t_Saynoceras verrucosum	134.55	23.82528538393496
Denmark3	Stephanelytron spp.	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.1 in stage_Callovian	164.914	45.02601922714286
Denmark3	Stephanelytron spp.	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.75 in stage_Kimmeridgian	150.625	44.180812
nw Australia compilation	Stephanelytron spp.	Riding et al., 2010	0 in stage_Callovian	165.29	-40.23798007857143
nw Australia compilation	Stephanelytron spp.	Riding et al., 2010	0 in stage_Callovian	165.29	-40.23798007857143
nw Australia compilation	Stephanelytron spp.	Riding et al., 2010	0.5 in stage_Tithonian	146.17000000000002	-48.727518033333325
nw Australia compilation	Stephanelytron spp.	Riding et al., 2010	0.5 in stage_Tithonian	146.17000000000002	-48.727518033333325
Isle of Skye	Stephanelytron redcliffense	Riding and Thomas, 1997	0.2 in amm_b_Kosmoceras jason	163.436	43.22135924
Isle of Skye	Stephanelytron redcliffense	Riding and Thomas, 1997	0.8 in amm_b_Perisphinctes cautisnigrae	157.368	43.82942142666666
North Sea Coast	Stephanelytron redcliffense	Riley and Fenton, 1982	0 in amm_b_Kosmoceras jason	163.47	36.55438875
Albstadt	Stephanelytron callovianum	Smelror and Dietl, 1994	0.33 in amm_b_Proplanulites koenigi	164.35909999999998	37.018888049
Caucasus	Stephanelytron caytonense	Smelror and Lominadze, 1989	0 in amm_b_Kosmoceras jason	163.47	37.61025
Caucasus	Stephanelytron caytonense	Smelror and Lominadze, 1989	1 in amm_b_Kosmoceras jason	163.3	37.5975
Kong Karls Land	Stephanelytron redcliffense	Smelror, 1988b	1 in amm_b_Peltoceras athleta	162.45	66.84180267857144
Kong Karls Land	Stephanelytron redcliffense	Smelror, 1988b	0.4 between 0 amm_b_Cardioceras cordatum 1 amm_b_Perisphinctes plicatilis	159.136	67.25303457142857
North Sea Basin	Stephanelytron redcliffense	Copestake and Partington, 2023	0 in amm_b_Kosmoceras jason	163.47	43.17481802857143
North Sea Basin	Stephanelytron redcliffense	Copestake and Partington, 2023	0.33 in amm_b_Ringsteadia pseudocordata	156.4148	43.180597044

Histogram