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
Vega	Leptodinium arcuatum	Århus et al., 1989	0.15 in amm_b_Peltoceras athleta	162.841	53.47882263125
Vega	Leptodinium subtile	Århus et al., 1989	0.75 in amm_b_Pictonia baylei	153.745	53.013197491666666
Vega	Leptodinium mirabile	Århus et al., 1989	0.7 in amm_b_Ringsteadia pseudocordata	155.512	53.29223918666666
Kimmeridge Clay N Yorkshire	Leptodinium antigonium	Bailey et al., 1997	0.25 in amm_b_Pectinatites pectinatus	147.21	NA
Kimmeridge Clay N Yorkshire	Leptodinium arcuatum	Bailey et al., 1997	0.25 in amm_b_Pectinatites pectinatus	147.21	NA
Marche	Leptodinium italicum	Biffi and Manum, 1988	0 in nan_n_NN2	22.68	37.551585250179414
Marche	Leptodinium italicum	Biffi and Manum, 1988	0.75 in plfor_A_P20	29.457375	36.615751890715714
Arctic Basin	Leptodinium mirabile	Bujak et al., 2022	0 in amm_b_Quenstedtoceras mariae	161.53	73.51499028571428
Arctic Basin	Leptodinium hyalodermopse	Bujak et al., 2022	0 in amm_b_Pictonia baylei	154.78	73.0867148
Arctic Basin	Leptodinium volgense	Bujak et al., 2022	0 in amm_b_Pectinatites elegans	149.1	72.03388633333333
Arctic Basin	Leptodinium deflandrei	Bujak et al., 2022	0 in amm_b_Pectinatites scitulus	148.67	71.9771851
Arctic Basin	Leptodinium deflandrei	Bujak et al., 2022	0 in amm_b_Progalbanites albani	145.1	71.506433
Arctic Basin	Leptodinium volgense	Bujak et al., 2022	0 in amm_b_Progalbanites albani	145.1	71.506433
Arctic Basin	Leptodinium mamilliferum	Bujak et al., 2022	0 in amm_b_Titanites anguiformis	144.33	71.40489823333333
North Sea Compilation	Leptodinium cancellatum	Costa and Davey, 1992	0.5 in amm_b_Pervenquieria pricei	105.235	44.7697698425
North Sea Compilation	Leptodinium cancellatum	Costa and Davey, 1992	1 in amm_b_Tropaeum bowerbanki	118.76	42.717923266666666
North Sea Compilation	Leptodinium deflandrei	Riding and Thomas, 1992	0 in amm_b_Pectinatites hudlestoni	147.84	39.39826506666667
North Sea Compilation	Leptodinium subtile	Riding and Thomas, 1992	1 in amm_b_Progalbanites albani	144.91	39.419722433333334
North Sea Compilation	Leptodinium subtile	Riding and Thomas, 1992	0 in amm_b_Witchellia laeviuscula	170.67	39.78415915
Angora Road, Tawanui	Leptodinium pustulatum	Crouch et al., 2014	0.35 in nan_n_NP5	60.6039295	-50.210375287995
Q13_14	Leptodinium cancellatum	Duxbury, 2001	0.25 in amm_b_Pervenquieria fallax	102.7775	50.601226114285716
534	Leptodinium ambiguum	Habib and Drugg, 1983	0.5 in mag_M19n	143.18523989631802	22.616202695207857
Volga Basin	Leptodinium subtile	Harding et al., 2011	0.38 in amm_r_Craspedites subditus	143.748	46.475514097777776
Central Danish Trough	Leptodinium cancellatum	Heilmann-Clausen, 1987	0 in amm_b_Hypacanthoplites jacobi	114.8	47.35207666666667
Central Danish Trough	Leptodinium cancellatum	Heilmann-Clausen, 1987	1 in amm_b_Leymeriella tardefurcata	110.87	47.79321727857143
765	Leptodinium asymmetricum	Helby and McMinn, 1992	0.2 in mag_C34n	113.50127111111112	-50.764107510559995
765	Leptodinium tunellum	Helby and McMinn, 1992	0.12 in mag_C34n	116.48639822222223	-50.98090197510815
765	Leptodinium eumorphum	Helby and McMinn, 1992	0.8 in nan_n_CC3	133.85468154484076	-53.33822804039858
765	Leptodinium pinnosum	Helby and McMinn, 1992	0.8 in nan_n_CC3	133.85468154484076	-53.33822804039858
765	Leptodinium simplex	Helby and McMinn, 1992	1 in mag_M1n	121.4	-51.49462927272727
765	Leptodinium simplex	Helby and McMinn, 1992	0.9 in mag_M1n	121.63825333333334	-51.52524980772122
765	Leptodinium tunellum	Helby and McMinn, 1992	0.1 in mag_M1n	123.54428	-51.77021408767273
765	Leptodinium asymmetricum	Helby and McMinn, 1992	0.5 in mag_M1r	123.97576064690341	-51.82566837266789
Australia Synthesis	Leptodinium ambiguum	Helby et al., 1987	1 in stage_Berriassian	137.7	-65.10280277777778
Australia Synthesis	Leptodinium eumorphum	Helby et al., 1987	1 in stage_Berriassian	137.7	-65.10280277777778
Australia Synthesis	Leptodinium ambiguum	Helby et al., 1987	0.33 in stage_Oxfordian	159.3025	-56.098735853571426
Australia Synthesis	Leptodinium eumorphum	Helby et al., 1987	0 in stage_Tithonian	149.24	-60.88986933333333
Broyon	Leptodinium mirabile	Monteil, 1993	1 in amm_t_Micracanthoceras ponti / Burckhardticeras peroni	145.05	31.491809833333335
Hold With Hope	Leptodinium cancellatum	Nøhr-Hansen et al., 2020	0.4 in stage_Albian	108.12	58.08731856
Hold With Hope	Leptodinium hyalodermopse	Nøhr-Hansen et al., 2020	0.33 in stage_Albian	109.009	58.022988742
Hold With Hope	Leptodinium cancellatum	Nøhr-Hansen et al., 2020	0.5 in stage_Aptian	117.30000000000001	56.6010065
Denmark3	Leptodinium ambiguum	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.2 in stage_Oxfordian	160.18	45.109922614285715
Denmark3	Leptodinium mirabile	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.2 in stage_Oxfordian	160.18	45.109922614285715
Denmark3	Leptodinium subtile	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.2 in stage_Oxfordian	160.18	45.109922614285715
Denmark3	Leptodinium ambiguum	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.5 in stage_Tithonian	146.17000000000002	44.13098728
Denmark3	Leptodinium arcuatum	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.55 in stage_Tithonian	145.863	44.127553792
Denmark3	Leptodinium eumorphum	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.55 in stage_Tithonian	145.863	44.127553792
Denmark3	Leptodinium mirabile	Poulsen and Riding, 2003 sensu Riding et al., 2010	0.5 in stage_Tithonian	146.17000000000002	44.13098728
nw Australia compilation	Leptodinium ambiguum	Riding et al., 2010	0.1 in stage_Oxfordian	160.855	-41.70451103214286
Isle of Skye	Leptodinium arcuatum	Riding and Thomas, 1997	0.2 in amm_b_Perisphinctes pumilus	158.272	43.826230035555554
Isle of Skye	Leptodinium subtile	Riding and Thomas, 1997	0.6 in amm_b_Perisphinctes pumilus	158.116	43.84450266222222
Isle of Skye	Leptodinium arcuatum	Riding and Thomas, 1997	0.5 in amm_b_Rasenia cymodoce	152.72	43.6185804
Isle of Skye	Leptodinium subtile	Riding and Thomas, 1997	0.5 in amm_b_Rasenia cymodoce	152.72	43.6185804
North Sea Coast	Leptodinium eumorphum	Riley and Fenton, 1982	0 in amm_b_Cardioceras cordatum	159.66	36.7215525
North Sea Coast	Leptodinium mirabile	Riley and Fenton, 1982	0 in amm_b_Perisphinctes plicatilis	159.1	36.7461225
North Sea Coast	Leptodinium subtile	Riley and Fenton, 1982	0 in amm_b_Perisphinctes plicatilis	159.1	36.7461225
Paksa	Leptodinium hyalodermopse	Shulgina et al., 1994	0.5 in amm_s_Unzoned	136.07	73.37088994545454
Kong Karls Land	Leptodinium mirabile	Smelror, 1988b	1 in amm_b_Peltoceras athleta	162.45	66.84180267857144
Dorset-Yorkshire	Leptodinium subtile	Woollam and Riding, 1983	0.67 in amm_b_Perisphinctes plicatilis	158.5975	38.808459078571424
U1509	Leptodinium pustulatum	Crouch et al., 2022	0 in nan_n_NP5	61.27447	-49.38053665233333
North Sea Basin	Leptodinium eumorphum	Copestake and Partington, 2023	0.5 in amm_b_Quenstedtoceras mariae	160.595	43.28716481428572
North Sea Basin	Leptodinium mirabile	Copestake and Partington, 2023	0 in amm_b_Cardioceras cordatum	159.66	43.32370194285714
North Sea Basin	Leptodinium mirabile	Copestake and Partington, 2023	1 in amm_b_Aulacostephanus mutabilis	150.99	42.6065915
North Sea Basin	Leptodinium subtile	Copestake and Partington, 2023	1 in amm_b_Quenstedtoceras mariae	159.66	43.32370194285714

Histogram