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Martinectes

Hiika maqaa: “Martin's swimmer”1

Kan nyaate: FoonPileesiyoosarootaKireetaashasii DhumaaSeera saayinsiitiin daayinoosarii miti

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

Odeeffannoo bashannansiisaa: harkifataan galaanaa kun yeroo daayinoosarootni lafa irra deemaa turan daakaa ture. Namni hundi daayinoo jedhee isaan waama, garuu damee harkifattootaa adda ta'e turan.

Kan jiraate

waggaa miliyoona 84 hanga 72 dura3

Kireetaashasii Dhumaa

Fosiliiwwan kan itti argaman

South Dakota, Texas, and Wyoming, USA3

Dheerina

2.3 hanga 2.6 m (7.5 hanga 8.5 ft)1

Ulfaatina

1.27 toonii (2,800 lb)2

Saffisa ol'aanaa

gara 26 km/sa'a (16 mph)

Daakuu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam guddaa ture?

Hammam dheeraa ture?

Hammam ulfaataa ture?

akka saree 64 ulfaata

akka saree 2.5 funyaan hanga eegeetti dheeraaakka muuzii 14 walitti hiriiran dheeraaakka habxuu 250 ulfaataakka ijoollee KG 67 ulfaataakka ijoollee mana barumsaa 40 ulfaataakka beeraa adii 3 ulfaatadheerina bishaan daakaa guddaa (50 m) sekondii 6.9 keessatti daakuu danda'a

SI wajjin yoo wal bira qabamu, Martinectes hammam guddaa ture?

Herrega qofa barbaadduu kee keessatti. Wanti tokkollee hin olkaa'amu, eessayyuu hin ergamu.

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Martinectes gara 26 km/sa'a (16 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

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

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

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

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

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

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

Fakkii AI'n hojjetame: Martinectes — Fakkii AI'n hojjetame kan Martinectes maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

ati gaafatte

Gaaffiiwwan waa'ee Martinectes baay'ee gaafataman

?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

Ogeeyyii daayinootiif

Maqaa saayinsii: Martinectes
Kan maqaa baase: Clark et al. 20243
Garee: Pileesiyoosaroota
Maatii / kilaadii: Polycotylidae3
Ramaddii: Plesiosauria > Sauropterygia3
Umurii dhagaawwanii: waggaa miliyoona 84 hanga 72 (Campanian)3
Caasaawwan dhagaa: Pierre Shale, Taylor Marl3
Biyyoota: Ameerikaa3
Galmee fosilii: 3 The Paleobiology Database keessa3
Argannoo: 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.3 1
Ammallee falmisiisaa: Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Odeeffannoon eessaa dhufa

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)
Martinectes (en.wikipedia.org)
Martinectes in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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