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Katuuni ya Martinectes
Kaadi ya dayinoso No. 1144 ku 2 027

Martinectes

Erinnya litegeeza: “Martin's swimmer”1
Yalyanga: EnnyamaPulesiyosawuluEnkomerero ya KuretasiMu butuufu si dayinoso

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

Ekyewuunyisa: ekyewalula kino eky'omu nnyanja kyawuganga nga dayinoso zitambula ku lukalu. Buli muntu abiyita dayinoso, naye byali ttabi ddala ery'ebyewalula.
Yabeerawo
emyaka obukadde 84 okutuuka ku 72 emabega3
Enkomerero ya Kuretasi
Ebisigalira byazuulibwa mu
South Dakota, Texas, and Wyoming, USA3
Obuwanvu
2.3 okutuuka ku 2.6 m (7.5 okutuuka ku 8.5 ft)1
Obuzito
ttani 1.27 (2,800 lb)2
Sipiidi esinga
nga 26 km/h (16 mph)
Okuwuga, kuteebereza

Yabeerawo ddi?

Tiriyasi
Jurasiki
Kuretasi
Emyaka obukadde 252 emabega20114566, asteroyidi

Yali munene atya?

Yali muwanvu kwenkana wa?

Martinectes obuwanvu nga 2.6 m (8.5 ft)Akagaali k'omukulu nga 1.8 m (5.9 ft)Emmotoka nga 4.5 m (15 ft)Enjovu, ekisolo ekisinga obunene ku lukalu leero nga 6.5 m (21 ft)

Yali muzito kwenkana wa?

obuzito ng'obw'embwa 64
obuwanvu ng'embwa 2.5, ennyindo ku mukiraobuwanvu ng'amenvu 14 nga gaddiriŋŋanaobuzito ng'obwa wotamerooni 250obuzito ng'obw'abaana 67 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 40obuzito ng'obwa ddubu enjeru 3yandiwuze obuwanvu bw'ekidiba ekinene (50 m) mu sikonda 6.9

Martinectes yali munene atya bw'ogeraageranya ku GGWE?

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Ebyewuunyisa

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

Kyakolebwa AIEkifaananyi kya Martinectes ekyakolebwa AI
Ekifaananyi kya Martinectes 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 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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi
Martinectes
Yatuumibwa
Clark et al. 20243
Ekibinja
Pulesiyosawulu
Ekika / ekibinja
Polycotylidae3
Engabanya
Plesiosauria > Sauropterygia3
Emyaka gy'enjazi
emyaka obukadde 84 okutuuka ku 72 (Campanian)3
Ensengeka z'enjazi
Pierre Shale, Taylor Marl3
Ensi
Amerika3
Ebisigalira ebyazuulibwa
3 mu The Paleobiology Database3
Okuzuulibwa
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
Kikyakubaganyizibwako ebirowoozo
Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Ebituufu gye biva

  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): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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Endala okuva mu kibinja kye kimu: Pulesiyosawulu

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Era ez'omu kiseera kye kimu: Enkomerero ya Kuretasi

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Liisa Rexakasanduuko k'ebirabo eri abakulu