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	Ambonosphaera calloviana	Århus et al., 1989	0.05 in amm_b_Peltoceras athleta	162.887	53.476862168749996
Arctic Basin	Ambonosphaera calloviana	Bujak et al., 2022	0 in amm_b_Proplanulites koenigi	164.6	73.21211285714286
Arctic Basin	Ambonosphaera calloviana	Bujak et al., 2022	0 in amm_b_Quenstedtoceras mariae	161.53	73.51499028571428
Haldager 1	Ambonosphaera staffinensis	Davey, 1982	0 in amm_b_Galbanites okusensis	144.72	43.99048697777778
Volga Basin	Ambonosphaera staffinensis	Harding et al., 2011	0.5 in amm_r_Craspedites nodiger	142.985	46.32129823333334
Central Danish Trough	Ambonosphaera staffinensis	Heilmann-Clausen, 1987	0.4 in amm_b_Prodichotomites	135.15	42.89059177777778
Nordvik Peninsula	Ambonosphaera delicata	Nikitenko et al., 2008	0.2 in amm_s_Craspedites taimyrensis	143.294	75.61355897
Nordvik Peninsula	Ambonosphaera staffinensis	Nikitenko et al., 2008	0.5 in amm_s_Hectoroceras kochi	138.755	74.18942502499999
Nordvik Peninsula	Ambonosphaera delicata	Nikitenko et al., 2008	0.15 in amm_s_Unzoned	137.13400000000001	73.68082817
Isle of Skye	Ambonosphaera staffinensis	Riding and Thomas, 1997	0.8 in amm_b_Perisphinctes cautisnigrae	157.368	43.82942142666666
Isle of Skye	Ambonosphaera staffinensis	Riding and Thomas, 1997	0.5 in amm_b_Rasenia cymodoce	152.72	43.6185804
Paksa	Ambonosphaera utera	Shulgina et al., 1994	0.15 in amm_s_Unzoned	137.13400000000001	73.70444620727272
Milne Land	Ambonosphaera calloviana	Smelror, 1988a	0.75 in amm_b_Peltoceras athleta	162.565	50.74619481875
Milne Land	Ambonosphaera calloviana	Smelror, 1988a	0.5 in amm_b_Sigaloceras calloviense	163.67000000000002	50.6570586125
Kong Karls Land	Ambonosphaera calloviana	Smelror, 1988b	0.5 between 0 amm_b_Quenstedtoceras lamberti 1 amm_b_Quenstedtoceras mariae	161.055	67.01490723214286
Kong Karls Land	Ambonosphaera calloviana	Smelror, 1988b	0.6 between 0 amm_b_Macrocephalites herveyi 1 amm_b_Peltoceras athleta	163.58599999999998	66.70083725
Barentz Sea	Ambonosphaera calloviana	Smelror, 1994	1 in stage_Bathonian	165.29	65.02230036428571
Barentz Sea	Ambonosphaera calloviana	Smelror, 1994	0 in stage_Oxfordian	161.53	65.42403219285714

Histogram