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Chithunzi choseketsa cha Dorygnathus
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Dorygnathus

Dzina limatanthauza: “spear jaw”1
Ankadya: NsombaZokwawa zoulukaKumayambiriro kwa JurasikiKwenikweni si dainoso

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

Mfundo yosangalatsa: mapterosauri ankauluka pamwamba pa madainoso, koma anali azisuweni awo, osati madainoso eniake.
Ankakhala
zaka 184 mpaka 183 miliyoni zapitazo4
Kumayambiriro kwa Jurasiki
Mafosili apezeka ku
Germany (Baden-Württemberg and Lower Saxony) and Nancy, France12
Kutambalala kwa mapiko
1.5 mpaka 1.7 m (4.9 mpaka 5.6 ft)1
Liwiro lalikulu kwambiri
pafupifupi 45 km/h (28 mph)
Kuuluka, kuyerekeza

Ankakhala liti?

Triasiki
Jurasiki
Kretase
Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali wamkulu bwanji?

Mapiko ake anali otambalala bwanji?

Dorygnathus mapiko pafupifupi 1.7 m kuchokera nsonga mpaka nsonga (5.6 ft)Mphaka wa pakhomo pafupifupi 0.5 m (1.6 ft)Galu pafupifupi 1 m (3.3 ft)Njinga ya munthu wamkulu pafupifupi 1.8 m (5.9 ft)
wautali ngati amphaka a pakhomo 3 otsatizana mphuno ndi mchiraakanatha kuuluka kudutsa bwalo lonse la mpira m'masekondi 8.4

Dorygnathus anali wamkulu bwanji poyerekeza ndi IWEYO?

Ndi masamu chabe mu msakatuli wako. Palibe chimene chimasungidwa kapena kutumizidwa kwina kulikonse.

Anali ndi liwiro lotani?

zinthu zosangalatsa

Mfundo zosangalatsa

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

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

Mafunso ofunsidwa kwambiri okhudza 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

Kwa akatswiri a madino

Dzina la sayansi
Dorygnathus
Anapatsidwa dzina ndi
Wagner 18604
Gulu
Zokwawa zouluka
Banja / kladi
Rhamphorhynchidae4
Magawidwe a sayansi
Pterosauria > Rhamphorhynchidae4
Zaka za miyala
zaka 184 mpaka 183 miliyoni (Toarcian)4
Mapangidwe a miyala
Posidonia Shale, Posidonienschiefer, Marne de Flize4
Mayiko
Jeremani, Falansa4
Zolemba za mafosili
37 mu The Paleobiology Database4
Kupezeka
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
Akukambiranabe
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

Kumene mfundo zimachokera

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

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