The Cretaceous–Paleogene extinction event, which in the oceans dramatically affected organisms with calcareous skeletons, appears to have had relatively little impact on diatom evolution.
O evento de extinción Cretáceo–Paleóxeno, o cal afectou nos océanos drasticamente a organismos con esqueletos calcarios, parece que tivo un impacto relativamente pequeno sobre a evolución das diatomeas.