ካርድ ዳይኖሰር ቁ. 1247 ካብ 2 027

Navaornis

ትርጉም ስሙ: “Nava's bird, honoring William Nava who discovered the fossil site”1

ይበልዕ ነበረ: ስጋቀዳሞት ኣዕዋፍዳሕራይ ክሬታሸስ

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.1 2

ዝነበረሉ

ቅድሚ 84 ክሳብ 66 ሚልዮን ዓመት3

ዳሕራይ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

William's Quarry at Sítio Paleontológico 'José Martin Suárez', Presidente Prudente, São Paulo State, Brazil1 3

ዝለዓለ ቅልጣፈ

ኣስታት 27 ኪ.ሜ/ሰ (17 ማይል/ሰ)

ምንፋር, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ቅልጡፍ ነይሩ?

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰ (3 mph)

ብሽክለታ ዝጋልብ ቆልዓ ኣስታት 12 ኪ.ሜ/ሰ (7 mph)

Navaornis ኣስታት 27 ኪ.ሜ/ሰ (17 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

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

Navaornis lived around 85 to 75 million years ago, during the Late Cretaceous period.1 2

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.1 2

Its inner ear (bony labyrinth) was shaped like that of many modern birds but was much larger.1

ብAI ዝተሰርሐ ስእሊ ናይ Navaornis — ብAI ዝተሰርሐ ስእሊ፣ Navaornis ከመይ ይመስል ከም ዝነበረ ዘርኢ፣ ኮምፒተር ካብቲ ሳይንቲስታት ዝፈልጥዎ ዝሰርሖ። ግምት እዩ: እቲ ሓቀኛ እንስሳ ፍልይ ዝበለ ክመስል ይኽእል፣ ሓቀኛ ሕብሩ ድማ ዝፈልጦ የለን።

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Navaornis
ዝሰመዮ: Chiappe et al. 20243
ጉጅለ: ቀዳሞት ኣዕዋፍ
ስድራ / ክላድ: Enantiornithes3
ምድባ: Theropoda > Avialae3
ዕድመ እቶም ኣኻውሕ: 84 ክሳብ 66 ሚልዮን ዓመት (Campanian / Maastrichtian)3
ናይ ኣኻውሕ ንብርብራት: Adamantina3
ሃገራት: ብራዚል3
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database3
ርኽበት: 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 2024.1 3
ገና ዘከራኽር: 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