Complex evolutionary history of basal birds

[The Eternal Flame]

The Early Cretaceous basal birds were known largely from just two-dimensionally preserved specimens from north-eastern China (Jehol Biota), which has hindered our understanding of the early evolution of birds. Here, we present a three-dimensionally-preserved skeleton (FPDM-V-9769) of a basal bird from the Early Cretaceous of Fukui, central Japan. 

https://novataxa.blogspot.com/2019/11/fukuipteryx.html?