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Igishushanyo cya Martinectes
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Martinectes

Izina risobanura: “Martin's swimmer”1
Yaryaga: InyamaPlesiyozoreKiretase ya nyumaMu by'ukuri si dinozore

Martinectes was a small, fast-swimming marine reptile that lived in the shallow seas of North America during the time of the dinosaurs. It had a short neck, a long snout, and four big flippers that helped it chase after fish and squid.1

Akantu gashimishije: iki gikururanda cyo mu nyanja cyogaga mu gihe dinozore zagendaga ku butaka. Bose bakita dinozore, ariko cyari mu rindi shami ry'ibikururanda.
Yabayeho
hashize imyaka miliyoni 84 kugeza 723
Kiretase ya nyuma
Ibisigazwa byabonetse muri
South Dakota, Texas, and Wyoming, USA3
Uburebure
2,3 kugeza 2,6 m (7,5 kugeza 8,5 ft)1
Uburemere
toni 1,27 (2 800 lb)2
Umuvuduko wo hejuru
nka 26 km/h (16 mph)
Koga, igereranya

Yabayeho ryari?

Triyasike
Jurasike
Kiretase
Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Martinectes nka 2,6 m z'uburebure (8,5 ft)Igare ry'umuntu mukuru nka 1,8 m (5,9 ft)Imodoka nka 4,5 m (15 ft)Inzovu, inyamaswa nini kurusha izindi ziba ku butaka muri iki gihe nka 6,5 m (21 ft)

Yari iremereye ite?

iremereye nk'imbwa 64
ndende nk'imbwa 2,5 zikurikiranyendende nk'imineke 14 ikurikiranyeiremereye nk'imbuto 250 za watermeloniremereye nk'abana 67 bo mu ishuri ry'incukeiremereye nk'abanyeshuri 40iremereye nk'idubu 3 zo mu ruburayashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 6,9

Martinectes yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

utuntu twiza cyane

Utuntu dushimishije

1

Martinectes was one of the smallest adult polycotylid plesiosaurs ever found, measuring only about 2.3 to 2.6 metres long.1

2

It had large eyes with a bony ledge above them, which may have shaded its eyes from sunlight while hunting near the water's surface.1

3

Martinectes lived about 80 million years ago in the Western Interior Seaway, a huge ocean that split North America in two.1

4

Its name means 'Martin's swimmer', honoring the person who helped discover its fossils.1

5

Martinectes was originally thought to be a species of Dolichorhynchops, but scientists gave it its own genus in 2024.1

6

It had unusually wide bones in its spine and a very short back part of its skull, which helped scientists tell it apart from other plesiosaurs.1

Byakozwe na AIIshusho ya Martinectes yakozwe na AI
Ishusho yakozwe na AI yerekana uko Martinectes ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.
wabajije

Ibibazo bibazwa cyane kuri Martinectes

?How big was Martinectes?

Martinectes was a large polycotylid plesiosaur, measuring at least around 5 metres (16 ft) long. Some estimates suggest it could reach up to 6 to 7 metres (20 to 23 ft), while a 2026 estimate put it at about 4.95 metres (16.2 ft) long.2

?Was Martinectes a dinosaur?

No, Martinectes was a plesiosaur, a marine reptile that lived in the seas during the time of the dinosaurs. It was not a dinosaur.2

?What did Martinectes eat?

Martinectes likely chased after fish and squid, using its long snout and four big flippers to swim fast. Its small teeth and narrow jaws suggest it ate small, slippery prey.2

Ku bazobereye muri dinozore

Izina rya siyansi
Martinectes
Yiswe na
Clark et al. 20243
Itsinda
Plesiyozore
Umuryango / ishami
Polycotylidae3
Ishyirwa mu byiciro
Plesiosauria > Sauropterygia3
Imyaka y'amabuye
imyaka miliyoni 84 kugeza 72 (Campanian)3
Inzego z'amabuye
Pierre Shale, Taylor Marl3
Ibihugu
Amerika3
Ibisigazwa byanditswe
3 muri The Paleobiology Database3
Ivumburwa
Martinectes was named in 2024 by Robert O. Clark, F. Robin O'Keefe, and Sara E. Slack. They studied fossils that had been found in Wyoming and South Dakota, USA, and realized they belonged to a new genus.31
Biracyagibwaho impaka
Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Aho amakuru yakuwe

  1. A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops (sciencedirect.com)
  2. Martinectes (en.wikipedia.org)
  3. Martinectes in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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