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Navaornis
Navaornis was a starling-sized bird that lived about 80 million years ago in what is now Brazil. It had a toothless, large-eyed skull that looked almost like a modern bird, but it belonged to an ancient group called enantiornithines. Its beautifully preserved skull let scientists see inside its brain for the first time in such an old bird.12
ଏହା କେବେ ବଞ୍ଚିଥିଲା?
ଏହା କେତେ ଦ୍ରୁତ ଥିଲା?
ମଜାଦାର ତଥ୍ୟ
Navaornis had a toothless skull with large eyes, just like many birds today, but its brain still had some ancient features like a small cerebellum and a weakly expanded telencephalon.1
Its skull is the best-preserved Mesozoic bird skull ever found, preserved in three dimensions without being flattened.1
The fossil site where Navaornis was found is very small, only about 6 square meters, but it has yielded hundreds of enantiornithine bird bones.1
Navaornis belongs to a group called Enantiornithes, which were the most diverse birds of the Mesozoic and lived on every continent except Antarctica.12
Its inner ear (bony labyrinth) was shaped like that of many modern birds but was much larger.1
ଡାଇନୋ ବିଶେଷଜ୍ଞଙ୍କ ପାଇଁ
- ବୈଜ୍ଞାନିକ ନାମ
- Navaornis
- ନାମ ଦେଇଥିଲେ
- Chiappe et al. 20243
- ଗୋଷ୍ଠୀ
- ଆଦିମ ପକ୍ଷୀ
- ପରିବାର / କ୍ଲେଡ୍
- Enantiornithes3
- ବର୍ଗୀକରଣ
- Theropoda > Avialae3
- ପଥରର ବୟସ
- 84 ରୁ 66 ନିୟୁତ ବର୍ଷ (Campanian / Maastrichtian)3
- ଶିଳା ଗଠନ
- Adamantina3
- ଦେଶ
- ବ୍ରାଜିଲ୍3
- ଜୀବାଶ୍ମ ରେକର୍ଡ
- The Paleobiology Database ରେ 13
- ଆବିଷ୍କାର
- The fossil site was discovered in 2004 by William Nava, and the holotype skull was found in 2016. The species was named Navaornis hestiae by Chiappe and colleagues in 2024.13
- ଏବେ ବି ବିତର୍କ ଚାଲିଛି
- Scientists are still debating exactly how Navaornis is related to other enantiornithines, because its toothless skull and modern-looking head make it hard to place in the family tree.1
ତଥ୍ୟ କେଉଁଠୁ ଆସେ
- Cretaceous bird from Brazil informs the evolution of the avian skull and brain | Nature (nature.com)
- Cretaceous bird from Brazil informs the evolution of the avian skull and brain (pmc.ncbi.nlm.nih.gov)
- Navaornis in The Paleobiology Database (CC BY 4.0): ବୟସ, ସ୍ଥାନ, ଶିଳା ଗଠନ, ବର୍ଗୀକରଣ।
ଏହି ପୃଷ୍ଠାର ପ୍ରତ୍ୟେକ ତଥ୍ୟ ପାଖରେ ଗୋଟେ ନମ୍ବର ଅଛି, ଯାହା ତାର ଉତ୍ସ ଦେଖାଏ। ଯଦି ଆମେ କିଛି ଭୁଲ କରିଛୁ, କ୍ଷମା କରିବ, ଆମେ ଡାଇନୋ ପ୍ରେମୀ, ବିଜ୍ଞାନ ପତ୍ରିକା ନୁହଁ। ଆମକୁ [email protected] ରେ ଜଣାଅ, ଆମେ ଠିକ୍ କରିଦେବୁ।
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Archaeopteryx
Hesperornis
Ichthyornis
Baptornis
Jurapteryx
Gobipteryx
Tyrannosaurus
Triceratops
Velociraptor
Spinosaurus
Ankylosaurus
Parasaurolophus