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	Chytroeisphaeridia cerastes	Århus et al., 1989	0.2 in amm_b_Peltoceras athleta	162.81799999999998	53.4798028625
Arctic Basin	Chytroeisphaeridia chytroeides	Bujak et al., 2022	0 in amm_b_Grammoceras thouarsense	178.34	72.76578402
Cabo Mondego	Chytroeisphaeridia chytroeides	Correia et al., 2019	0.5 in amm_t_Parkinsonia parkinsoni	168.445	30.757591925
North Sea Compilation	Chytroeisphaeridia chytroeides	Riding and Thomas, 1992	0 in amm_b_Brasilia bradfordensis	171.9	39.7469455
North Sea Compilation	Chytroeisphaeridia cerastes	Riding and Thomas, 1992	0.8 in amm_b_Perisphinctes pumilus	158.038	40.16634031
North Sea Compilation	Chytroeisphaeridia chytroeides	Riding and Thomas, 1992	1 in amm_b_Subcraspedites lamplughi	141.75	39.442864166666666
North Sea Compilation	Chytroeisphaeridia cerastes	Riding and Thomas, 1992	0 in amm_b_Zigzagiceras zigzag	168.17	39.85979665
Calvados	Chytroeisphaeridia chytroeides	Feist-Burkhardt and Monteil, 1997	0.75 in amm_b_Stephanoceras humphriesianum	169.82750000000001	35.923743825
534	Chytroeisphaeridia chytroeides	Habib and Drugg, 1983	0.5 in mag_M19n	143.18523989631802	22.616202695207857
Central Danish Trough	Chytroeisphaeridia cerastes	Heilmann-Clausen, 1987	1 in amm_b_Paratollia/Platylenticeras	134.55	42.89018911111111
Central Danish Trough	Chytroeisphaeridia cerastes	Heilmann-Clausen, 1987	0 in amm_b_Peregrinoceras albidum	137.81	42.89237693333333
765	Chytroeisphaeridia chytroeides	Helby and McMinn, 1992	0.8 in nan_n_CC3	133.85468154484076	-53.33822804039858
Rio Argos	Chytroeisphaeridia scabrata	Leereveld, 1997a	0.5 in amm_t_Acanthodiscus radiatus	132.10500000000002	24.130393211114463
Rio Argos	Chytroeisphaeridia cerastes	Leereveld, 1997a	0.8 in amm_t_Crioceratites loryi	131.05	24.262045054744068
Rio Argos	Chytroeisphaeridia cerastes	Leereveld, 1997a	0.5 in amm_t_Subsaynella sayni	129.38	24.548210517683803
Czestochowa	Chytroeisphaeridia chytroeides	Poulsen, 1998	0.4 in amm_t_Parkinsonia parkinsoni	168.5	42.199886666666664
Czestochowa	Chytroeisphaeridia chytroeides	Poulsen, 1998	0.6 in amm_b_Sigaloceras calloviense	163.63	41.6050324
nw Australia compilation	Chytroeisphaeridia chytroeides	Riding et al., 2010	0.6 in stage_Bathonian	166.44199999999998	-39.857045770000006
nw Australia compilation	Chytroeisphaeridia chytroeides	Riding et al., 2010	0.67 in stage_Oxfordian	157.0075	-43.234224475000005
Isle of Skye	Chytroeisphaeridia hyalina	Riding and Thomas, 1997	0.85 in amm_b_Macrocephalites herveyi	164.7035	43.07289414833333
Isle of Skye	Chytroeisphaeridia hyalina	Riding and Thomas, 1997	0.9 in amm_b_Macrocephalites herveyi	164.66899999999998	43.07693521
Isle of Skye	Chytroeisphaeridia cerastes	Riding and Thomas, 1997	0.9 in amm_b_Macrocephalites herveyi	164.66899999999998	43.07693521
Isle of Skye	Chytroeisphaeridia cerastes	Riding and Thomas, 1997	0.75 in amm_b_Perisphinctes pumilus	158.0575	43.851354897222215
North Sea Coast	Chytroeisphaeridia hyalina	Riley and Fenton, 1982	0 in amm_b_Macrocephalites herveyi	165.29	36.47453625
North Sea Coast	Chytroeisphaeridia cerastes	Riley and Fenton, 1982	0.5 in amm_b_Sigaloceras calloviense	163.67000000000002	36.54561375
Caucasus	Chytroeisphaeridia hyalina	Smelror and Lominadze, 1989	0 in amm_t_Erymnoceras coronatum	163.3	37.5975
Caucasus	Chytroeisphaeridia chytroeides	Smelror and Lominadze, 1989	1 in amm_t_Erymnoceras coronatum	162.64	37.548
Caucasus	Chytroeisphaeridia hyalina	Smelror and Lominadze, 1989	1 in amm_b_Kosmoceras jason	163.3	37.5975
Zaragoza	Chytroeisphaeridia chytroeides	Smelror et al., 1991	0.5 in amm_t_Bullatimorphites bullatus	164.985	29.453487525
Milne Land	Chytroeisphaeridia hyalina	Smelror, 1988a	0.25 in amm_b_Cardioceras cordatum	159.51999999999998	50.99182355
Milne Land	Chytroeisphaeridia cerastes	Smelror, 1988a	0.5 in amm_b_Cardioceras cordatum	159.38	51.003116825
Milne Land	Chytroeisphaeridia hyalina	Smelror, 1988a	1 in amm_b_Clydoniceras discus	165.29	50.5263792875
Milne Land	Chytroeisphaeridia cerastes	Smelror, 1988a	0.5 in amm_b_Erymnoceras coronatum	163.10500000000002	50.70263504375
Milne Land	Chytroeisphaeridia chytroeides	Smelror, 1988a	0.25 in amm_b_Peltoceras athleta	162.795	50.72764158125
Milne Land	Chytroeisphaeridia chytroeides	Smelror, 1988a	0.5 in amm_b_Peltoceras athleta	162.68	50.7369182
Kong Karls Land	Chytroeisphaeridia cerastes	Smelror, 1988b	1 in amm_b_Peltoceras athleta	162.45	66.84180267857144
Dorset-Yorkshire	Chytroeisphaeridia chytroeides	Woollam and Riding, 1983	0 in amm_b_Garantiana garantiana	169.27	38.1586258
Dorset-Yorkshire	Chytroeisphaeridia chytroeides	Woollam and Riding, 1983	0 in amm_b_Paracraspedites oppressus	144.13	38.48152285625
Dorset-Yorkshire	Chytroeisphaeridia cerastes	Woollam and Riding, 1983	1 in amm_b_Perisphinctes plicatilis	158.35	38.823529
North Sea Basin	Chytroeisphaeridia cerastes	Copestake and Partington, 2023	0.1 in amm_b_Perisphinctes pumilus	158.311	43.37641700857143
North Sea Basin	Chytroeisphaeridia hyalina	Copestake and Partington, 2023	1 in amm_b_Sigaloceras calloviense	163.47	43.17481802857143
North Sea Basin	Chytroeisphaeridia hyalina	Copestake and Partington, 2023	0.9 in amm_b_Oxycerites orbis	165.522	43.09463173142857

Histogram