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	Siberia	Smolenskiella bicornis	Zatonskaya, 1975	0 in stage_Berriasian	143.1	41.485
LO	Siberia	Smolenskiella bicornis	Zatonskaya, 1975	1 in stage_Berriasian	137.7	40.008
FO	Russia synthesis	Smolenskiella crassitheca	Vozzhennikova, 1967	0 in stage_Cenomanian	100.5	43.575
LO	Russia synthesis	Smolenskiella crassitheca	Vozzhennikova, 1967	1 in stage_Maastrichtian	66.04	43.082