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
FO	Ardeche	Stephanelytron brontes	Courtinat, 1999	0.5 in stage_Callovian	163.41	32.425
LO	Ardeche	Stephanelytron brontes	Courtinat, 1999	0.5 in stage_Oxfordian	158.155	32.188
FO	Arctic Basin	Stephanelytron callovianum	Bujak et al., 2022	0 in amm_b_Proplanulites koenigi	164.6	73.297
FO	North Yorkshire	Stephanelytron callovianum	Piel, 1985	0.5 in stage_Callovian	163.41	40.999
LO	North Yorkshire	Stephanelytron callovianum	Piel, 1985	1 in stage_Callovian	161.53	41.096
FO	Albstadt	Stephanelytron callovianum	Smelror and Dietl, 1994	0.33 in amm_b_Proplanulites koenigi	164.359	37.106
FO	Caucasus	Stephanelytron caytonense	Smelror and Lominadze, 1989	0 in amm_b_Kosmoceras jason	163.47	41.242
LO	Caucasus	Stephanelytron caytonense	Smelror and Lominadze, 1989	1 in amm_b_Kosmoceras jason	163.3	41.178
FO	Ardeche	Stephanelytron ceto	Courtinat, 1999	0.5 in stage_Callovian	163.41	32.425
LO	Ardeche	Stephanelytron ceto	Courtinat, 1999	0.5 in stage_Oxfordian	158.155	32.188
FO	Isle of Wright	Stephanelytron cretaceum	Duxbury, 1983	0 in stage_Aptian	121.4	39.738
LO	Isle of Wright	Stephanelytron cretaceum	Duxbury, 1983	1 in stage_Aptian	113.2	42.071
LO	North Sea Compilation	Stephanelytron membranoideum	Costa and Davey, 1992	1 in amm_b_Epicheloniceras martinoides	117.53	42.849
FO	Arctic Basin	Stephanelytron membranoideum	Bujak et al., 2022	0 in amm_b_Pictonia baylei	154.78	73.231
LO	Arctic Basin	Stephanelytron membranoideum	Bujak et al., 2022	0 in amm_b_Aulacostephanus mutabilis	152.04	72.658
LO	Central Danish Trough	Stephanelytron membranoideum	Heilmann-Clausen, 1987	1 in amm_b_Parahoplites nutfieldiensis	114.8	47.077
FO	Haldager 1	Stephanelytron membranoideum	Davey, 1982	0 in amm_b_Galbanites kerberus	144.52	43.986
FO	Haldager 1	Stephanelytron membranoideum	Davey, 1982	0 in amm_b_Galbanites kerberus	144.52	43.986
FO	Rio Argos	Stephanelytron membranoideum	Leereveld, 1997b	1 in amm_t_Saynoceras verrucosum	134.55	25.027
FO	Volga Basin	Stephanelytron membranoideum	Harding et al., 2011	0 in amm_r_Virgatites virgatus	145.1	46.293
FO	Scotian Margin	Stephanelytron redcliffense	Williams et al., 1993	0.6 in stage_Callovian	163.034	30.431
LO	Scotian Margin	Stephanelytron redcliffense	Williams et al., 1993	0.2 in stage_Kimmeridgian	153.672	33.612
FO	North Sea Compilation	Stephanelytron redcliffense	Copestake and Partington, 2023	0 in amm_b_Kosmoceras jason	163.47	40.085
LO	North Sea Compilation	Stephanelytron redcliffense	Copestake and Partington, 2023	0.33 in amm_b_Ringsteadia pseudocordata	156.415	40.201
LO	North Sea Compilation	Stephanelytron redcliffense	Riding and Thomas, 1992	0.5 in amm_b_Aulacostephanus mutabilis	151.515	40.168
FO	Isle of Skye	Stephanelytron redcliffense	Riding and Thomas, 1997	0.2 in amm_b_Kosmoceras jason	163.436	43.305
LO	Isle of Skye	Stephanelytron redcliffense	Riding and Thomas, 1997	0.8 in amm_b_Perisphinctes cautisnigrae	157.368	43.977
FO	Northwest Australia compilation	Stephanelytron redcliffense	Riding et al., 2010	0 in stage_Callovian	165.29	-40.205
FO	Northwest Australia compilation	Stephanelytron redcliffense	Riding et al., 2010	0 in stage_Callovian	165.29	-40.205
LO	Northwest Australia compilation	Stephanelytron redcliffense	Riding et al., 2010	0.5 in stage_Tithonian	146.17	-50.193
LO	Northwest Australia compilation	Stephanelytron redcliffense	Riding et al., 2010	0.5 in stage_Tithonian	146.17	-50.193
FO	Denmark synthesis	Stephanelytron redcliffense	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.1 in stage_Callovian	164.914	45.27
LO	Denmark synthesis	Stephanelytron redcliffense	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.75 in stage_Kimmeridgian	150.625	44.546
FO	North Sea Coast	Stephanelytron redcliffense	Riley and Fenton, 1982	0 in amm_b_Kosmoceras jason	163.47	36.554
FO	Kandern	Stephanelytron redcliffense	Dimter and Smelror, 1990	0.25 in amm_b_Kosmoceras jason	163.428	37.449
FO	Kong Karls Land	Stephanelytron redcliffense	Smelror, 1988b	1 in amm_b_Peltoceras athleta	162.45	66.916
LO	Kong Karls Land	Stephanelytron redcliffense	Smelror, 1988b	0.4 between 0 amm_b_Cardioceras cordatum 1 amm_b_Perisphinctes plicatilis	159.136	67.306
FO	Champagne	Stephanelytron scarburghense	Fauconnier, 1995	0 in amm_b_Erymnoceras coronatum	163.3	37.373
LO	Champagne	Stephanelytron scarburghense	Fauconnier, 1995	1 in amm_b_Cardioceras cordatum	159.1	37.379
LO	DSDP 534	Stephanelytron scurburghense	Habib and Drugg, 1983	0.5 in mag_M24n	150.985	22.73
FO	Kandern	Stephanelytron scurburghense	Dimter and Smelror, 1990	0.25 in amm_b_Kosmoceras jason	163.428	37.449
LO	Quercy	Stephanelytron scurburghense	Ioannides et al., 1988	1 in amm_b_Aulacostephanus mutabilis	150.99	31.843
FO	Blake Plateau	Stephanelytron tabulophorum	Stover, 1977	0.5 in stage_Callovian	163.41	17.772
LO	Blake Plateau	Stephanelytron tabulophorum	Stover, 1977	1 in stage_Callovian	161.53	18.563