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	Volga Basin, Russia	Feist-Burkhardt, 1994	0 in amm_b_Haugia variabilis	179.82	60.521
FO	Volga Basin, Russia	Feist-Burkhardt, 1994	0 in amm_b_Haugia variabilis	179.82	60.521
LO	Volga Basin, Russia	Feist-Burkhardt, 1994	0.75 in amm_b_Dumortieria pseudoradiosa	176.34	58.404
LO	Volga Basin, Russia	Feist-Burkhardt, 1994	0.75 in amm_b_Dumortieria pseudoradiosa	176.34	58.404