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	Speeton, UK	Duxbury, 2023	0.55 in amm_b_Endemoceras regale	131.315	40.723
LO	Speeton, UK	Duxbury, 2023	0.1 in amm_b_Milanowskia speetonensis	129.828	41.023