Меловой период

Bujtor, L., & Szinger, B. (2018) Micropaleontological observations on the Lower Cretaceous iron ore-related formations of the Mecsek Mts.(Upper Valanginian–Lower Hauterivian, South Hungary) // Central European Geology, 1-24.

https://akademiai.com/doi/full/10.1556/24.61.2018.08