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

FO/LO	Location	Taxon	Source	Calibration	Age (Ma)	Paleolatitude
FO	North Sea Compilation	Cleistosphaeridium varispinosum	Riding and Thomas, 1992	0 in amm_b_Clydoniceras discus	165.5	39.9405775
FO	Isle of Skye	Cleistosphaeridium varispinosum	Riding and Thomas, 1997	0.85 in amm_b_Macrocephalites herveyi	164.7035	43.07289414833333
FO	Zaragoza	Cleistosphaeridium varispinosum	Smelror et al., 1991	0.5 in amm_t_Bullatimorphites bullatus	164.985	29.453487525
FO	North Sea Basin	Cleistosphaeridium varispinosum	Copestake and Partington, 2023	0.9 in amm_b_Oxycerites orbis	165.522	43.09463173142857
LO	Isle of Skye	Cleistosphaeridium varispinosum	Riding and Thomas, 1997	0.9 in amm_b_Macrocephalites herveyi	164.66899999999998	43.07693521
LO	North Sea Coast	Cleistosphaeridium varispinosum	Riley and Fenton, 1982	1 in amm_b_Sigaloceras calloviense	163.47	36.55438875
LO	Caucasus	Cleistosphaeridium varispinosum	Smelror and Lominadze, 1989	1 in amm_b_Proplanulites koenigi	163.87	37.64025
LO	Dorset-Yorkshire	Cleistosphaeridium varispinosum	Woollam and Riding, 1983	1 in amm_b_Kosmoceras jason	163.3	38.52213057142857

Distribution


Histogram


Map