The most complete hatchling specimen found so far encased in Burmese amber, has been identified by an international team of scientists.
The specimen provides a detailed look at young birds that lived nearly 99 million years ago.
According to Xing Lida from the China University of Geosciences, who is leading the research, the 9-centimeter-long specimen included most of the skull and neck, a partial wing and hindlimb, and soft tissue of the tail.
Xing said the proportions of body parts and form of the feathers indicated it was a very young and highly advanced hatchling, adding that the unusually detailed feathers revealed unexpected diversity in primitive birds.
“Many people thought it was a lizard. But the scales, thread-like feathers and sharp claws on the feet were so noticeable that I thought they must belong to a bird,” said Chen Guang, owner of the specimen and curator of a museum in Yunnan, the province that borders Myanmar.
“There were no obvious signs of struggle. The overall posture of the bird resembled hunting, with its lifted body, open claws, and beak and spread wings,” said Tseng Kuowei with the University of Taipei. “It was possibly engulfed by falling resin at the exact moment it was hunting.”
The paper titled “A mid-Cretaceous enantiornithine (Aves) hatchling preserved in Burmese amber with unusual plumage,” co-authored by a group of Chinese, Canadian and American scientists was published by Gondwana Research this month.
(Photos from Beijing Youth Daily Weibo account)
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