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Katuuni ya Dorygnathus
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Dorygnathus

Erinnya litegeeza: “spear jaw”1
Yalyanga: EbyennyanjaEbyewalula ebibuukaEntandikwa ya JurasikiMu butuufu si dayinoso

Dorygnathus was a flying reptile that lived during the Early Jurassic, about 180 million years ago. It had a short wingspan of around 1.5 metres (4.9 feet) and a long tail. Its most striking feature was its mouth full of large, curved fangs at the front and smaller teeth at the back.1

Ekyewuunyisa: pterosawulu zaabuukanga waggulu wa dayinoso, naye zaali ab'oluganda lwazo, so si dayinoso zennyini.
Yabeerawo
emyaka obukadde 184 okutuuka ku 183 emabega4
Entandikwa ya Jurasiki
Ebisigalira byazuulibwa mu
Germany (Baden-Württemberg and Lower Saxony) and Nancy, France12
Obugazi bw'ebiwaawaatiro
1.5 okutuuka ku 1.7 m (4.9 okutuuka ku 5.6 ft)1
Sipiidi esinga
nga 45 km/h (28 mph)
Okubuuka, kuteebereza

Yabeerawo ddi?

Tiriyasi
Jurasiki
Kuretasi
Emyaka obukadde 252 emabega20114566, asteroyidi

Yali munene atya?

Ebiwaawaatiro bye byali bigazi kwenkana wa?

Dorygnathus ebiwaawaatiro nga 1.7 m okuva ku ntikko okutuuka ku ntikko (5.6 ft)Kkapa ow'awaka nga 0.5 m (1.6 ft)Embwa nga 1 m (3.3 ft)Akagaali k'omukulu nga 1.8 m (5.9 ft)
obuwanvu nga kkapa 3 ab'awaka, ennyindo ku mukirayandibuuse okusomoka ekisaawe ky'omupiira kyonna mu sikonda 8.4

Dorygnathus yali munene atya bw'ogeraageranya ku GGWE?

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Ebyewuunyisa

1

Dorygnathus had different kinds of teeth: four large fangs in the upper jaw and three or four in the lower jaw at the front, with smaller, straighter teeth behind. This is called heterodonty and is rare in modern reptiles.1

2

The fifth toe on its hind feet was unusually long and pointed sideways. Scientists think it may have supported a membrane, like the one on its wings.1

3

Dorygnathus was a close relative of the later pterosaur Rhamphorhynchus, and lived at the same time as another pterosaur called Campylognathoides in Germany.1

4

Over 50 specimens of Dorygnathus have been found, many in slate quarries. The best fossils are kept at the State Museum of Natural History Stuttgart in Germany.1

5

Some Dorygnathus teeth show wear from eating hard food like crustaceans or mollusks, not just fish.1

6

The smallest known Dorygnathus had a wingspan of 60 centimetres (2 feet). Scientists think very young juveniles could not fly far over the open sea.1

Kyakolebwa AIEkifaananyi kya Dorygnathus ekyakolebwa AI
Ekifaananyi kya Dorygnathus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.
wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Dorygnathus

?How big was Dorygnathus?

Dorygnathus had a wingspan of about 1.5 metres (4.9 feet), though some large individuals reached 1.7 metres (5.6 feet).12

?What did Dorygnathus eat?

Dorygnathus ate small fish, as shown by fossilised stomach contents. Some teeth also show wear from eating hard food like crustaceans or mollusks.13

?Could Dorygnathus fly?

Yes, Dorygnathus was a flying reptile. It had wings made of skin and other membranes, and its flight muscles attached to a small triangular breastbone.1

?Is Dorygnathus a dinosaur?

No, Dorygnathus was a pterosaur, a flying reptile that lived during the age of dinosaurs, but it was not a dinosaur.1

Eri abakugu mu dayinoso

Erinnya lya ssaayansi
Dorygnathus
Yatuumibwa
Wagner 18604
Ekibinja
Ebyewalula ebibuuka
Ekika / ekibinja
Rhamphorhynchidae4
Engabanya
Pterosauria > Rhamphorhynchidae4
Emyaka gy'enjazi
emyaka obukadde 184 okutuuka ku 183 (Toarcian)4
Ensengeka z'enjazi
Posidonia Shale, Posidonienschiefer, Marne de Flize4
Ensi
Bugirimaani, Bufalansa4
Ebisigalira ebyazuulibwa
37 mu The Paleobiology Database4
Okuzuulibwa
The first fossils of Dorygnathus were found near Banz, Bavaria, Germany, and were described in 1830 by Carl Theodori as Ornithocephalus banthensis. In 1860, Johann Andreas Wagner gave it the name Dorygnathus, meaning 'spear jaw'.1
Kikyakubaganyizibwako ebirowoozo
Scientists still debate whether Dorygnathus walked on two legs or four. Some think it could walk on two legs because of its long tail, but most now believe all pterosaurs walked on all fours.1

Ebituufu gye biva

  1. Dorygnathus (en.wikipedia.org)
  2. The Early Jurassic Pterosaur Dorygnathus Banthensis (Theodori, 1830) | The Palaeontological Association (palass.org)
  3. Press | State Museum of Natural History Stuttgart (naturkundemuseum-bw.de)
  4. Dorygnathus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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