Kartu dino No. 1144 ci 2 027

Martinectes

Tur bi mooy: “Martin's swimmer”1

Lekkoon: YàppPlesiyosoor yiKretase bu mujjCi xam-xam, du dinosoor

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

Xibaar bu neex: reptil bu géej bii dafa daan féey ci jamono yi dinosoor yi daan dox ci suuf. Ñépp dañu leen di wooye dino, waaye beneen caru reptil lañu woon.

Dundoon

am na 84 ba 72 milyoŋ at3

Kretase bu mujj

Fosil yu ñu gis ci

South Dakota, Texas, and Wyoming, USA3

Guddaay

2,3 ba 2,6 m (7,5 ba 8,5 ft)1

Diisaay

1,27 toon (2 800 lb)2

Gaawaay bi gën a kawe

lu tollu ci 26 km/h (16 mph)

Féey, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la réyoon?

Naka la guddoon?

Naka la diisoon?

diis ni 64 xaj

gudd ni 2,5 xaj, bakkan ba geengudd ni 14 banaana yu ñu topp-toppalediis ni 250 xaaldiis ni 67 xale yu materneldiis ni 40 xale yu lekkooldiis ni 3 uurs yu weexmënoon na féey guddaayu pisin bu mag (50 m) ci 6,9 segond

Naka la Martinectes réyoon, bu ñu ko méngalee ak YAW?

Ay kalkil rekk ci sa navigatëer. Dara du ñu denc, dara du ñu yónne fenn.

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Martinectes lu tollu ci 26 km/h (16 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

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

Nataalu Martinectes bu ñu def ak IA — Nataal bu IA def la, muy wone ni Martinectes mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

yeen a laaj

Laaj yi ñu gën a laaj ci 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

Ngir ñi xam dino lool

Turu xam-xam: Martinectes
Ku ko tudde: Clark et al. 20243
Kurél: Plesiyosoor yi
Njaboot / klad: Polycotylidae3
Klasifikasiyoŋ: Plesiosauria > Sauropterygia3
Màggaayu doj yi: 84 ba 72 milyoŋ at (Campanian)3
Formasiyoŋi doj: Pierre Shale, Taylor Marl3
Réew yi: Amerig3
Fosil yu ñu gis: 3 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

Bépp xibaar ci xët wii am na lim bu wone fa mu jóge. Su nu juumee, baal nu, nun ñu bëgg dino lanu, du ab sërnaalu xam-xam. Wax nu ko ci [email protected] nu defar ko.

Rex xiif na! Dino Wiki, mbiru ab baay la ngir doomam ju góor ju bëgg dinosoor, ci neen te amul kaamuñaate, amul tracker. Mag ñi mën nañu jox Rex tuuti ñam ngir dimbali ko mu des ci internet.Dundal Rex