New and Strange Prehistoric Bird with Beak Found in China

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Appearance of New and Strange Prehistoric Bird Found in China with Toothless Beak

The following 'Bahasa' text translated to 'English' while preserving any html tags: "A new description of a species of enantiornithine bird with toothless beak from the Jehol avifauna in China has been presented by paleontological experts."

Imparavis attenboroughi, which was found in the northeastern region of China around 120 million years ago, belongs to the Enantiornithes or known as the 'opposite birds'. This term refers to the structure of their shoulder joints which is different from modern birds. In the past, Enantiornithes was a highly diverse group of birds, but they became extinct about 66 million years ago due to the impact of a meteor collision which also caused the extinction of most dinosaurs. Information about the discovery of this prehistoric enantiornithine bird is cited from sci.news on (21/03).

"Expert Paleontologist Findings"

The following is the translation of the provided 'Bahasa' text to 'English' while preserving any html tags: "Experts in paleontology are trying to find an explanation for why enantiornithines became extinct. Meanwhile, the ornithuromorph group, which represents the evolution towards modern birds, has managed to survive. "Enantiornithines have very distinctive characteristics. The majority of them still retain teeth and claws," said Alex Clark, a PhD student at the University of Chicago and the Field Museum."

The previous researchers believed that the condition of tooth loss in this group first occurred approximately 72 million years ago, during the Late Cretaceous period. However, the discovery of Imparavis attenboroughi, a small specimen, shifts the estimation earlier to around 48 to 50 million years. This means that the evolution of tooth loss or edentulism happened much earlier in this group than previously estimated.

"Prehistoric Bird Found in China"

"Discovery of Fossil Imparavis Attenboroughi"

The fossil skeleton of Imparavis attenboroughi was discovered by an amateur fossil collector near the village of Toudaoyingzi in northeastern China, and later donated to the Shandong Tianyu Natural History Museum.

"The interesting thing about this specimen is not only the loss of its teeth, but especially the structure on its front legs," said Dr. Jingmai O'Connor, a curator and expert in reptile fossils at the Field Museum. "It has a large bone protrusion on its shoulder. This is a prominent bone structure on the upper arm, where muscles attach." "I have previously seen similar protrusions on birds from the Late Cretaceous period, but not from the Early Cretaceous period like this specimen. This makes me think that this could be a new species.""

The strange structure of the wing bones in Imparavis attenboroughi may facilitate muscle attachment, allowing the bird to move its wings more efficiently. On the other hand, the toothless beak in Imparavis attenboroughi does not provide direct clues to researchers about its feeding patterns, as modern toothless birds tend to eat a variety of foods.

Dr. states, "It seems that most enantiornithine birds lived in trees, but the different structure of the front legs in Imparavis attenboroughi indicates that although it is likely to also live in trees, it can come down to the ground to search for food. This may indicate that it has a different feeding pattern from other enantiornithine birds, which may also explain why it does not have teeth."

Research About Chiappeavis

"In this study, scientists also conducted a re-examination of bird fossils previously identified as Chiappeavis. The findings indicate that these birds belong to the category of ancient enantiornithine birds that do not have teeth. This discovery, along with Imparavis attenboroughi, suggests that the condition of being toothless is not uncommon among early Cretaceous enantiornithine birds, as previously believed," the researchers explained.

The giving of the species name Imparavis attenboroughi as a tribute to the naturalist Sir David Attenborough, depicts a peculiar bird associated with Attenborough. It seems that the history of birds is far more complex than we previously knew. "All birds are dinosaurs, but not all dinosaurs belong to the special category known as birds."

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