Jeholornis (meaning "Jehol bird") is a genus of avialan dinosaurs that lived between approximately 122 and 120 million years ago during the early Cretaceous Period in China.Fossil Jeholornis were first discovered in the Jiufotang Formation in Hebei Province, China (in what was previously Rehe Province, also known as Jehol—hence the name) and additional specimens have been found in the older ...

2022年10月24日 · Jeholornis is a representative of the earliest-diverging bird lineages, providing important evidence of anatomical transitions involved in bird origins. Although ~100 specimens have been reported, its cranial morphology remains poorly documented owing to poor two-dimensional preservation, limiting our understanding of the morphology and ecology ...

2002年7月25日 · Jeholornis is a large bird, represented by a partially articulated skull and nearly complete postcranial bones (Fig. 1). The holotype comprises five slabs. Their associations are unambiguously...

2016年5月24日 · Jeholornis was a primitive bird that is known from both the Hebei and Liaoning provinces of China where individuals of the genus lived during the early cretaceous.‭ ‬At eighty centimetres long from the tip of the snout to the tip of the tail,‭ ‬Jeholornis was quite a large bird for the time.‭ An additional bird genus named ...

2013年10月7日 · One of the oldest known birds, Jeholornis, lived in what is today China, along with a trove of other feathered dinosaurs discovered in the region over the last decade. It was also thought to...

2002年7月24日 · The new species (Jeholornis prima) should be the earliest Mesozoic bird ever found in China, only next to the world-famous Archaeopteryx unearthed from Germany in 1861, according Zhou and Zhang, both from the CAS Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.

2002年7月26日 · In the 25 July issue of Nature, two Chinese paleontologists describe one of the most primitive birds ever discovered, Jeholornis. The bird's peculiar tail underscores the now-common theme of kinship with dinosaurs.

2013年9月12日 · Documentation of the unique frond-and-fan tail of Jeholornis adds to the growing body of evidence that basal birds resembled their living counterparts in using a remarkably diverse and advanced array of feather types and configurations to optimize flight and engage in social signaling, with many integumentary features likely playing key roles ...

2003年4月15日 · Jeholornis is a recently reported basal bird, which appears to be less advanced than any other known bird except for Archaeopteryx. Its stomach was found to contain over 50 seeds of unknown plants, representing the first direct evidence for seed-eating adaptation in the Mesozoic (Zhou and Zhang 2002 a).

2013年10月10日 · We describe the presence of essentially two functional tails in the Early Cretaceous Jeholornis (the second most primitive bird)—one like that of some modern birds with a fan-shaped tract of feathers over the proximal tail vertebrae and another distal frond like that of feathered dinosaurs such as Caudipteryx and Microraptor.