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
LO	Bohemian Basin	Downiesphaeridium aciculare	Olde et al., 2015	0.75 in nan_u_UC9c	87.758	43.332
FO	East Kent	Downiesphaeridium aciculare	Prince et al., 2008	0.4 in amm_b_Peroniceras tridorsatum	88.87	44.251
LO	East Kent	Downiesphaeridium aciculare	Prince et al., 2008	0 in amm_b_Scaphites hippocrepis III	81.53	43.486
LO	ODP 748	Downiesphaeridium armatum	Mohr and Mao Shaozhi, 1997	0.5 in nan_n_CC23	74.05	-60.563
FO	ODP 748	Downiesphaeridium armatum	Mohr and Mao Shaozhi, 1997	0 in nan_n_CC22	76.766	-60.43
LO	Stevns Klint	Downiesphaeridium armatum	Surlyk et al., 2013	0 in nan_u_UC20d	67.279	45.646
FO	Stevns Klint	Downiesphaeridium armatum	Surlyk et al., 2013	0 in nan_u_UC16d	76.766	46.52
FO	Bohemian Basin	Downiesphaeridium armatum	Olde et al., 2015	0.5 between 0 nan_u_UC5c 1 nan_u_UC6	93.908	42.775
LO	DSDP 400A	Downiesphaeridium armatum	Davey, 1979b	0.5 in nan_u_BC25	106.115	39.576
FO	DSDP 400A	Downiesphaeridium armatum	Davey, 1979b	1 in nan_u_BC22	113.173	38.959
LO	East Kent	Downiesphaeridium armatum	Prince et al., 2008	0.95 in amm_b_Placenticeras polyopsis	83.965	43.731
FO	Pueblo	Downiesphaeridium armatum	Dodsworth, 2000	0.85 in plfor_A_Rotalipora cushmani	98.091	45.653
FO	Rodmell	Downiesphaeridium armatum	Tocher and Jarvis, 1996	0.5 in amm_b_Acanthoceras rhotomagense	95.875	43.53
LO	Fumichon	Downiesphaeridium armatum	Tocher and Jarvis, 1994	0.6 in amm_t_Acanthoceras jukesbrownei	95.55	41.828
LO	Fumichon	Downiesphaeridium armatum	Tocher and Jarvis, 1994	0.6 in amm_t_Acanthoceras jukesbrownei	95.55	41.828
FO	Donghai	Downiesphaeridium bulbum	Yu Jingxian, 1989	0 in stage_Ypresian	56	26.164
LO	Donghai	Downiesphaeridium bulbum	Yu Jingxian, 1989	1 in stage_Priabonian	33.9	24.263
FO	Rio Argos	Downiesphaeridium chems	Leereveld, 1997a	1 in amm_t_Acanthodiscus radiatus	131.61	24.482
LO	Rio Argos	Downiesphaeridium chems	Leereveld, 1997a	0.25 in amm_t_Imerites giraudi	121.895	25.321
FO	Silesian Basin	Downiesphaeridium chems	Skupien and Vašíček, 2002	0 in amm_t_Toxancyloceras vandenheckii	124.4	35.728
LO	Silesian Basin	Downiesphaeridium chems	Skupien and Vašíček, 2002	1 in amm_t_Toxancyloceras vandenheckii	122.99	36.117
FO	Vocontian Basin	Downiesphaeridium chems	Duxbury, 2024	0.75 in amm_t_Neocomites neocomiensiformis	136.18	30.041
LO	ODP 748	Downiesphaeridium flexuosum	Mao Shaozhi and Mohr, 1992	0.6 in nan_n_CC23	73.69	-60.581
FO	DSDP 361	Downiesphaeridium flexuosum	Davey, 1978	0.75 in nan_c_NC7b	114.906	-42.6
FO	Vocontian Basin	Downiesphaeridium flexuosum	Duxbury, 2024	0.5 in amm_t_Tirnovella alpillensis	138.035	30.131
FO	Vocontian Basin	Downiesphaeridium obtusum	Duxbury, 2024	0 in amm_t_Karakaschiceras inostranzewi	136	30.032
LO	Vocontian Basin	Downiesphaeridium obtusum	Duxbury, 2024	1 in amm_t_Karakaschiceras inostranzewi	135.4	30.003
FO	Dorset-Yorkshire	Downiesphaeridium sarmentum	Stancliffe, 1991	0.5 in stage_Oxfordian	158.155	38.883
LO	Dorset-Yorkshire	Downiesphaeridium sarmentum	Stancliffe, 1991	1 in stage_Oxfordian	154.78	39.032
FO	se England	Downiesphaeridium spinulastrum	Islam, 1983b	0 in stage_Lutetian	48.07	41.99
LO	se England	Downiesphaeridium spinulastrum	Islam, 1983b	1 in stage_Bartonian	37.71	43.329
FO	Dorset-Yorkshire	Downiesphaeridium tribuliferum	Sarjeant, 1962a	0 in stage_Oxfordian	161.53	38.7
LO	Dorset-Yorkshire	Downiesphaeridium tribuliferum	Sarjeant, 1962a	1 in stage_Oxfordian	154.78	39.032
LO	Haldager 1	Downiesphaeridium tribuliferum	Davey, 1982	0 in amm_b_Paracraspedites oppressus	144.13	43.976
LO	Vocontian Basin	Downiesphaeridium tribuliferum	Duxbury, 2024	0.27 in amm_t_Thurmanniceras pertransiens	137.355	30.098
FO	Kandern	Downiesphaeridium tribuliferum	Dimter and Smelror, 1990	0.2 in amm_b_Sigaloceras calloviense	163.79	37.47