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	Czestochowa, Poland	Poulsen, 1998	0.85 in amm_t_Parkinsonia parkinsoni	168.252	42.283
LO	Czestochowa, Poland	Poulsen, 1998	1 in amm_t_Hecticoceras retrocostatum	165.5	41.926
LO	Milne Land, Greenland	Smelror, 1988a	0.5 in amm_b_Macrocephalites herveyi	164.945	50.554