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Katuni: Martinectes
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Martinectes

Zita rinoreva: “Martin's swimmer”1
Raidya: NyamaMapresiosauroCretaceous YekupedzisiraHarisi dhinosori chaizvo

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

Chokwadi chinonakidza: chinokambaira ichi chemugungwa chaishambira madhinosori achifamba panyika. Munhu wese anozviti madhino, asi zvaiva bazi rakasiyana rezvinokambaira.
Raivapo
makore mamiriyoni 84 kusvika 72 apfuura3
Cretaceous Yekupedzisira
Mafosiri akawanikwa:
South Dakota, Texas, and Wyoming, USA3
Kureba
2.3 kusvika 2.6 m (7.5 kusvika 8.5 ft)1
Huremu
matani 1.27 (2,800 lb)2
Kumhanya kwepamusoro
kunenge 26 km/h (16 mph)
Kushambira, fungidziro

Rairarama rini?

Triassic
Jurassic
Cretaceous
makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raiva hombe sei?

Raiva refu zvakadii?

Martinectes kureba kunenge 2.6 m (8.5 ft)Bhasikoro remunhu mukuru kunenge 1.8 m (5.9 ft)Motokari kunenge 4.5 m (15 ft)Nzou, mhuka hombe kupfuura dzose dzepanyika nhasi kunenge 6.5 m (21 ft)

Rairema zvakadii?

kurema seimbwa 64
kureba seimbwa 2.5 kubva pamhino kusvika kumuswekureba semabhanana 14 akatevedzanakurema semanwiwa 250kurema sevana vekireshi 67kurema sevana vechikoro 40kurema semabere echando 3raigona kushambira kureba kwedziva guru rekushambira (50 m) mumasekonzi 6.9

Martinectes raiva hombe sei kana richienzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Raimhanya zvakadii?

zvinhu zvinonakidza

Zvinonakidza

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

Zvakagadzirwa neAIMufananidzo wakagadzirwa neAI: Martinectes
Mufananidzo wakagadzirwa neAI unoratidza kuti Martinectes ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.
wakabvunza

Mibvunzo inonyanya kubvunzwa nezve 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

Zvevanyanzvi vemadhino

Zita resainzi
Martinectes
Akaripa zita:
Clark et al. 20243
Boka
Mapresiosauro
Mhuri / boka
Polycotylidae3
Kurongwa kwemhuka
Plesiosauria > Sauropterygia3
Zera rematombo
makore mamiriyoni 84 kusvika 72 (Campanian)3
Mapoka ematombo
Pierre Shale, Taylor Marl3
Nyika
Amerika3
Zvinyorwa zvemafosiri
3 mu The Paleobiology Database3
Kuwanikwa
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
Zvichiri kupokanwa
Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Kunobva chokwadi

  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): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

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Mamwe kubva muboka rimwe chete: Mapresiosauro

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Zvimwe zvenguva imwe chete: Cretaceous Yekupedzisira

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