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	Australia synthesis	Xenascus asperatus	Helby et al., 1987	0.8 in stage_Albian	103.04	-54.369
LO	Australia synthesis	Xenascus asperatus	Helby et al., 1987	0.67 in stage_Turonian	90.878	-53.643
FO	Australia synthesis	Xenascus australiensis	Cookson and Eisenack, 1969	0 in stage_Albian	113.2	-53.29
LO	Australia synthesis	Xenascus australiensis	Cookson and Eisenack, 1969	1 in stage_Cenomanian	93.9	-55.275
FO	se England	Xenascus blastema	Davey, 1970	0 in stage_Cenomanian	100.5	43.221
LO	se England	Xenascus blastema	Davey, 1970	1 in stage_Cenomanian	93.9	43.653
LO	ODP 748	Xenascus ceratioides	Mohr and Mao Shaozhi, 1997	0 in nan_n_CC23	75.854	-60.475
LO	Scotian Margin	Xenascus ceratioides	Fensome et al., 2008	0.75 in nan_c_NC20	72.669	38.165
FO	North Sea Compilation	Xenascus ceratioides	Costa and Davey, 1992	0 in amm_b_Proleymeriella schrammeni	113.2	43.824
LO	North Sea Compilation	Xenascus ceratioides	Costa and Davey, 1992	0.75 in stage_Maastrichtian	67.573	42.961
LO	Stevns Klint	Xenascus ceratioides	Surlyk et al., 2013	1 in nan_u_UC16b	77.563	46.593
FO	Cordebugle	Xenascus ceratioides	Tocher and Jarvis, 1996	0 in amm_b_Mantelliceras mantelli	100.25	41.382
FO	East Kent	Xenascus ceratioides	Prince et al., 2008	0.5 in amm_b_Prionocyclus germani	89.545	44.339
FO	Isle of Wright	Xenascus ceratioides	Clarke and Verdier, 1967	0.3 in stage_Cenomanian	98.52	43.057
LO	Isle of Wright	Xenascus ceratioides	Clarke and Verdier, 1967	0.6 in stage_Campanian	76.762	41.626
FO	Q13_14	Xenascus ceratioides	Duxbury, 2001	0.25 in amm_b_Pervenquieria inflatum	103.4	50.4
LO	Rif	Xenascus ceratioides	Slimani et al., 2016	1 in stage_Campanian	72.17	24.081
FO	Rif	Xenascus ceratioides	Slimani et al., 2016	0.9 in stage_Campanian	73.318	24.16
FO	Vallentigny	Xenascus ceratioides	Davey and Verdier, 1971	0 in amm_b_Anahoplites intermedius	109.17	40.143
LO	Labrador Sea	Xenascus ceratioides	Nøhr-Hansen, 2025	0 in stage_Maastrichtian	72.17	53.673
LO	Poland synthesis	Xenascus ceratioides	Niechwedowicz and Walaszczyk, 2021	0.25 in ino_Inoceramus redbirdensis	72.65	42.685
LO	Hornby Island	Xenascus ceratioides	McLachlan et al., 2018	1 in mag_C33n	74.201	56.036
LO	Meer	Xenascus ceratioides	Slimani et al., 2011	0.9 in stage_Campanian	73.318	42.117
FO	Rio Argos	Xenascus ceratioides	Leereveld, 1995	0.1 in amm_t_Lyelliceras lyelli	110.167	28.014
FO	Western Carpathians	Xenascus ceratioides	Skupien, 2004	0.25 in amm_t_Praeschloenbachia perinflatum	101.285	33.501
FO	Fumichon	Xenascus ceratioides	Tocher and Jarvis, 1994	0 in amm_t_Mantelliceras dixoni	98.37	41.601
FO	Fumichon	Xenascus ceratioides	Tocher and Jarvis, 1994	0 in amm_t_Mantelliceras dixoni	98.37	41.601
LO	M8 Hartuv B	Xenascus ceratioides	Hoek et al., 1996	0.6 between 0.5 nan_u_UC16 0.5 nan_u_UC17	72.446	14.534
FO	Westfalen	Xenascus ceratioides ssp. procerus	Yun Hyesu, 1981	0 in stage_Santonian	85.7	43.234
LO	Westfalen	Xenascus ceratioides ssp. procerus	Yun Hyesu, 1981	0.5 in stage_Santonian	84.675	43.137
FO	Italy synthesis	Xenascus dubius	Corradini, 1973	0 in stage_Coniacian	89.39	27.554
LO	Italy synthesis	Xenascus dubius	Corradini, 1973	1 in stage_Maastrichtian	66.04	28.098
FO	East Kent	Xenascus esbeckianus	Prince et al., 2008	0.4 in amm_b_Paratexanites serratomarginatus	86.924	44.029
FO	Westfalen	Xenascus esbeckianus	Yun Hyesu, 1981	0 in stage_Santonian	85.7	43.234
LO	Westfalen	Xenascus esbeckianus	Yun Hyesu, 1981	0.5 in stage_Santonian	84.675	43.137
FO	ODP 959	Xenascus ghanaensis	Masure et al., 1998	0 in stage_Maastrichtian	72.17	-7.956
LO	ODP 959	Xenascus ghanaensis	Masure et al., 1998	0.25 in stage_Maastrichtian	70.638	-8.09
LO	ODP 959	Xenascus gochtii	Masure et al., 1998	0.75 in stage_Coniacian	86.622	-6.264
LO	East Kent	Xenascus gochtii	Prince et al., 2008	0.95 in amm_b_Placenticeras polyopsis	83.965	43.731
FO	East Kent	Xenascus gochtii	Prince et al., 2008	0.4 in amm_b_Placenticeras polyopsis	84.68	43.803
LO	Gulf	Xenascus gochtii	Srivastava, 1995	1 in plfor_A_Radotruncana calcarata	74.201	34.291
FO	Gulf	Xenascus gochtii	Srivastava, 1995	1 in plfor_A_Contusotruncana plummerae	75.911	34.178
FO	Northeast Greenland	Xenascus gochtii	Nøhr-Hansen, 2025	0.31 in stage_Coniacian	88.246	58.219
LO	Poland synthesis	Xenascus gochtii	Niechwedowicz and Walaszczyk, 2021	1 in ino_Inoceramus inkermaenensis	72.85	42.712
FO	Hold With Hope	Xenascus gochtii	Nøhr-Hansen et al., 2019	0.2 in stage_Coniacian	88.652	58.757
FO	Southeast Greenland	Xenascus gochtii	Nøhr-Hansen, 2025	0.07 in stage_Coniacian	89.132	49.902
LO	Scotian Margin	Xenascus perforatus	Fensome et al., 2008	0.75 in nan_c_NC20	72.669	38.165
FO	East Kent	Xenascus perforatus	Prince et al., 2008	0.8 in amm_b_Gauthiericeras margae	87.618	44.098
LO	East Kent	Xenascus perforatus	Prince et al., 2008	0.2 in amm_b_Placenticeras polyopsis	84.94	43.829
LO	Seaford Head	Xenascus perforatus	Jarvis et al., 2023	0.2 in nan_u_UC14ii	82.171	42.187
FO	Hold With Hope	Xenascus plotei	Nøhr-Hansen et al., 2019	0.45 in stage_Cenomanian	97.53	58.877
LO	Hold With Hope	Xenascus plotei	Nøhr-Hansen et al., 2019	0.55 in stage_Cenomanian	96.87	58.943
FO	Aracaju	Xenascus plotei	Santos et al., 2018	0 in nan_u_UC6	93.9	-12.529
LO	Aracaju	Xenascus plotei	Santos et al., 2018	1 in nan_u_UC7	90.36	-13.624
FO	Italy synthesis	Xenascus sarjeantii	Corradini, 1973	0 in stage_Coniacian	89.39	27.554
LO	Italy synthesis	Xenascus sarjeantii	Corradini, 1973	1 in stage_Maastrichtian	66.04	28.098
LO	Poland synthesis	Xenascus sarjeantii	Niechwedowicz and Walaszczyk, 2021	0.25 in ino_Inoceramus redbirdensis	72.65	42.685
FO	Italy synthesis	Xenascus serpaglii	Corradini, 1973	0 in stage_Coniacian	89.39	27.554
LO	Italy synthesis	Xenascus serpaglii	Corradini, 1973	1 in stage_Maastrichtian	66.04	28.098
LO	East Kent	Xenascus spinatus	Prince et al., 2008	0.99 in amm_b_Placenticeras polyopsis	83.913	43.726
FO	East Kent	Xenascus spinatus	Prince et al., 2008	0.78 in amm_b_Placenticeras polyopsis	84.186	43.753
FO	Bohemian Basin	Xenascus velimensis	Žítt et al., 1997	0 in stage_Turonian	93.9	42.776
LO	Bohemian Basin	Xenascus velimensis	Žítt et al., 1997	0.5 in stage_Turonian	91.645	43.106
FO	Poigny	Xenascus wetzelii	Pearce et al., 2022	1 in nan_u_UC13	82.79	40.087
LO	Poigny	Xenascus wetzelii	Pearce et al., 2022	1 in nan_u_UC15d	75.85	39.453
LO	Labrador Sea	Xenascus wetzelii	Nøhr-Hansen, 2025	0.88 in stage_Campanian	73.548	53.813
LO	Poland synthesis	Xenascus wetzelii	Niechwedowicz and Walaszczyk, 2021	0.13 in ino_Inoceramus redbirdensis	72.746	42.698
LO	Meer	Xenascus wetzelii	Slimani et al., 2011	0.7 in stage_Campanian	75.614	42.322
FO	East Kent	Xenascus yunii	Prince et al., 2008	1 in amm_b_Gauthiericeras margae	87.5	44.086
LO	East Kent	Xenascus yunii	Prince et al., 2008	0.92 in amm_b_Placenticeras polyopsis	84.004	43.735