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.

No stratigraphic data available. If you know publications where stratigraphic ranges of this species or genus are calibrated, report this by using the feedback button below.

Plots are based on the following information

FO/LO	Location	Source	Calibration	Age (Ma)	Paleolatitude
FO	Isle of Wright, UK	Williams and Downie, 1966c	0 in stage_Ypresian	56	40.58
FO	Northeast Greenland, Greenland	Nøhr-Hansen, 2025	0.94 in stage_Selandian	59.385	56.454
LO	Isle of Wright, UK	Williams and Downie, 1966c	1 in stage_Ypresian	48.07	41.611