Dino kad No. 1144 wɔ 2 027 mu

Martinectes

Din no ase: “Martin's swimmer”1

Ɔdii: NamPlesiosɔɔKretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

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

Asɛm a ɛyɛ anigye: ɛpo mu aboa a ɔwea yi guaree berɛ a dinosɔɔ nantew asase so. Obiara frɛ wɔn dino, nanso na wɔyɛ mmoa a wɔwea abusua foforɔ.

Ɔtenaa ase

mfeɛ ɔpepem 84 kɔsi 72 a atwam3

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

South Dakota, Texas, and Wyoming, USA3

Tenten

2.3 kɔsi 2.6 m (7.5 kɔsi 8.5 ft)1

Mu duru

ton 1.27 (2,800 lb)2

Ntɛmntɛm a ɛsen biara

bɛyɛ 26 km/h (16 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ nkraman 64

ne tenten te sɛ nkraman 2.5 firi hwene kɔsi duane tenten te sɛ kwadu 14 a wɔde abɔ toatoa sone mu duru te sɛ watamɛlɔn 250ne mu duru te sɛ nkɔkɔaa sukuu mmofra 67ne mu duru te sɛ sukuu mmofra 40ne mu duru te sɛ polar bea 3anka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 6.9 mu

Martinectes kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Martinectes bɛyɛ 26 km/h (16 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Martinectes mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

wobisaeɛ

Nsɛm a wɔbisa bebree fa Martinectes ho

?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

Ma dino ho animdefoɔ

Nyansahu din: Martinectes
Obi a ɔtoo din: Clark et al. 20243
Kuo: Plesiosɔɔ
Abusua / kuo kɛseɛ: Polycotylidae3
Nkyekyɛmu: Plesiosauria > Sauropterygia3
Abotan no mfeɛ: mfeɛ ɔpepem 84 kɔsi 72 (Campanian)3
Abotan nhyehyɛeɛ: Pierre Shale, Taylor Marl3
Aman: Amerika3
Fɔsil nkyerɛwee: 3 wɔ The Paleobiology Database mu3
Nhunumu: 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
Wɔda so gye ho akyinnye: Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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