Quantitative investigation of pengornithid enantiornithine diet reveals macrocarnivorous ecology evolved in birds by Early Cretaceous Miller, Case Vincent ; Pittman, Michael ; Wang, Xiaoli ; Zheng, Xiaoting ; Bright, Jen A. Abstract Publication: iScience Pub Date: March 2023 DOI: 10.1016/j.isci.2023.106211 Bibcode: 2023iSci...26j6211M