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Jian Changmaensis

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Canopy-hunting four-winged microraptor reveals soaring past in China
science3 hours ago

Canopy-hunting four-winged microraptor reveals soaring past in China

A newly described microraptor, Jian changmaensis, from the Lower Cretaceous Xiagou Formation in China’s Changma Basin, had long feathers on both arms and legs forming four wings and likely glided through trees to ambush early birds. At about the size of a barn owl with a roughly 1.2-meter wingspan, it provides insight into how close dinosaur relatives approached bird flight and highlights a canopy-hunting lifestyle among microraptors.

New Microraptorine Found in China Expands Feathered-Dino Range
paleontology4 hours ago

New Microraptorine Found in China Expands Feathered-Dino Range

Scientists describe Jian changmaensis, a large microraptorine dromaeosaurid from China's Xiagou Formation in the Changma Basin (Early Cretaceous, about 124–120 million years ago). With an estimated four‑foot wingspan, it likely had long feathers on both arms and legs, forming four wings for gliding rather than powered flight. Discovered at a bird‑rich site that has yielded over 100 Early Cretaceous bird skeletons, this find extends Microraptorinae’s range to northwestern China and provides new insights into the evolution of early birds and their non‑avian relatives. The study is published in the Annals of Carnegie Museum.