Kuwajima Formation


The Kuwajima Formation is an Early Cretaceous geologic formation in Japan. Its precise age is uncertain due to a lack of identifying fossils, but it is probably Valanginian to Hauterivian in age. Dinosaur remains are among the fossils that have been recovered from the formation, including Albalophosaurus yamaguchiorum.
The multituberculate mammals Hakusanobaatar matsuoi and Tedoribaatar reini are known from the Kuwajima Formation. A member of Tritylodontidae, Montirictus kuwajimaensis, has also been recovered from the unit.

Vertebrate Paleobiota

Amphibians

Choristoderes

Squamates

Dinosaurs

Mammaliaformes