Navaornis

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

Ankadya: NyamaMbalame zoyambiriraKumapeto kwa Kretase

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

Ankakhala

zaka 84 mpaka 66 miliyoni zapitazo3

Kumapeto kwa Kretase

Mafosili apezeka ku

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

Liwiro lalikulu kwambiri

pafupifupi 27 km/h (17 mph)

Kuuluka, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Navaornis pafupifupi 27 km/h (17 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chithunzi cha Navaornis chopangidwa ndi AI — Chithunzi cha momwe Navaornis mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

Kwa akatswiri a madino

Dzina la sayansi: Navaornis
Anapatsidwa dzina ndi: Chiappe et al. 20243
Gulu: Mbalame zoyambirira
Banja / kladi: Enantiornithes3
Magawidwe a sayansi: Theropoda > Avialae3
Zaka za miyala: zaka 84 mpaka 66 miliyoni (Campanian / Maastrichtian)3
Mapangidwe a miyala: Adamantina3
Mayiko: Brazil3
Zolemba za mafosili: 1 mu The Paleobiology Database3
Kupezeka: 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
Akukambiranabe: 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

Kumene mfundo zimachokera

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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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