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	New Guinea	Rotosphaeropsis munu	Davey, 1988	0.5 in stage_Kimmeridgian	152.01	-52.967
LO	New Guinea	Rotosphaeropsis munu	Davey, 1988	1 in stage_Kimmeridgian	149.24	-53.638
LO	North Sea Compilation	Rotosphaeropsis thule	Copestake and Partington, 2023	1 in amm_b_Hectoroceras kochi	138.77	39.733
LO	North Sea Compilation	Rotosphaeropsis thule	Costa and Davey, 1992	1 in amm_b_Hectoroceras kochi	138.77	39.733
FO	North Sea Compilation	Rotosphaeropsis thule	Riding and Thomas, 1992	0 in amm_b_Pectinatites hudlestoni	147.84	40.053
FO	Arctic Basin	Rotosphaeropsis thule	Bujak et al., 2022	0 in amm_b_Kosmoceras jason	163.47	73.401
LO	Northeast Greenland	Rotosphaeropsis thule	Nøhr-Hansen, 2025	0.67 in stage_Berriasian	139.482	52.895
LO	Central Danish Trough	Rotosphaeropsis thule	Heilmann-Clausen, 1987	1 in amm_b_Surites stenomphalus	137.81	43.103
LO	Haldager 1	Rotosphaeropsis thule	Davey, 1982	0 in amm_b_Subcraspedites lamplughi	143.26	43.954
FO	North Yorkshire	Rotosphaeropsis thule	Bailey et al., 1997	0.75 in amm_b_Pectinatites hudlestoni	147.48	41.408
LO	Hold With Hope	Rotosphaeropsis thule	Nøhr-Hansen et al., 2019	0.67 in stage_Berriasian	139.482	53.385
LO	Wollaston	Rotosphaeropsis thule	Alsen et al., 2023	0 in amm_s_Hectoroceras kochi	139.92	54.052