Carta da dino nr. 1144 da 2 027

Martinectes

Il num vul dir: “Martin's swimmer”1

Mangiava: CharnPlesiosaursCretacic tardivTecnicamain betg in dinosaur

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

Fatg divertent: quest reptil da mar nudava, entant ch'ils dinosaurs chaminavan sin terra. Tuts als numnan dinos, ma els eran in'autra rama dals reptils.

Viveva

avant 84 fin 72 milliuns onns3

Cretacic tardiv

Fossils chattads en

South Dakota, Texas, and Wyoming, USA3

Lunghezza

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

Paisa

1,27 tonnas (2 800 lb)2

Spertadad maximala

var 26 km/h (16 mph)

Nudar, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant grev era el?

uschè grev sco 64 chauns

uschè lung sco 2,5 chauns dal nas a la cuauschè lung sco 14 bananas ina suenter l'autrauschè grev sco 250 melunasuschè grev sco 67 uffants da scolettauschè grev sco 40 scolarsuschè grev sco 3 urs polarspudess nudar la lunghezza d'ina gronda piscina (50 m) en 6,9 secundas

Quant grond era Martinectes cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Martinectes var 26 km/h (16 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Martinectes fatg cun IA — In maletg fatg cun IA che mussa co Martinectes pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart 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

Per experts da dinos

Num scientific: Martinectes
Numnà da: Clark et al. 20243
Gruppa: Plesiosaurs
Famiglia / clada: Polycotylidae3
Classificaziun: Plesiosauria > Sauropterygia3
Vegliadetgna da la crappa: 84 fin 72 milliuns onns (Campanian)3
Formaziuns da crap: Pierre Shale, Taylor Marl3
Pajais: USA3
Chats da fossils: 3 en The Paleobiology Database3
Scuverta: 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
Anc discutà: Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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