The Hauterivian (133-129 Ma) is the third age of the Early Cretaceous, occurring after the Valanginian, and before the Barremian
132.6–129.4 Ma
The oldest definitive angiosperm fossils are pollen grains of Valanginian or Hauterivian age, ∼130 Ma (Trevisan 1988; Hughes 1994; Brenner 1996)