Carta da dino nr. 1460 da 2 027

Polycotylus

Il num vul dir: “much-cupped vertebrae”1

Mangiava: CharnPlesiosaursGiurassic tardiv fin Cretacic tardivTecnicamain betg in dinosaur

Polycotylus was a short-necked plesiosaur that swam in the warm seas of North America and Europe during the Cretaceous. It had a big head, strong flippers, and gave birth to live babies in the water, just like whales do today.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 152 fin 72 milliuns onns3

Giurassic tardiv fin Cretacic tardiv

Fossils chattads en

Kansas, South Dakota, Alabama, and Wyoming in the USA; also France and Russia1 2

Lunghezza

4,7 fin 5,4 m (15 fin 18 ft)1

Paisa

1 tonnas (2 200 lb)1

Spertadad maximala

var 27 km/h (17 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 50 chauns

uschè lung sco 5 chauns dal nas a la cuauschè lung sco 30 bananas ina suenter l'autrauschè grev sco 200 melunasuschè grev sco 53 uffants da scolettauschè grev sco 31 scolarsuschè grev sco 2 urs polarspudess nudar la lunghezza d'ina gronda piscina (50 m) en 6,7 secundas

Quant grond era Polycotylus 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)

Polycotylus var 27 km/h (17 mph)

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

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Polycotylus was named by famous paleontologist Edward Drinker Cope in 1869 from fossils found in Kansas.1

A fossil of Polycotylus found in Kansas contains a single large fetus inside the mother, proving that these plesiosaurs gave live birth.1

The baby Polycotylus was about 1.5 metres (4.9 feet) long, which is about 32 percent of the mother's length.1

Polycotylus had a short neck and a long head, making it look a bit like a pliosaur, but it is actually a type of plesiosaur called a polycotylid.1

Its name means 'much-cupped vertebrae' because the bones in its spine have deep cup-like hollows.1

Polycotylus lived in the Western Interior Seaway, a shallow sea that split North America in two during the Cretaceous.1

Scientists think Polycotylus gave birth to just one large baby at a time, a strategy called K-selection.1

Maletg da Polycotylus fatg cun IA — In maletg fatg cun IA che mussa co Polycotylus 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 Polycotylus

?How big was Polycotylus?

Polycotylus was a medium-sized plesiosaur, measuring about 4.7 to 5.4 metres (15 to 18 feet) long and weighing over 1 metric ton (1.1 short tons).1

?Did Polycotylus have a short neck?

Yes, Polycotylus had a short neck and a long head, unlike the long-necked plesiosaurs like Elasmosaurus.1

?What did Polycotylus eat?

Polycotylus had thick teeth with striations on their surfaces, which suggests it ate fish and other marine animals, but the sources do not give a specific diet.1

?When did Polycotylus live?

Polycotylus lived toward the end of the Cretaceous period, about 84 to 66 million years ago.1

Chatschader da mitus

Mitus: Many people think all plesiosaurs had long necks like the Loch Ness Monster.

Vardad: Polycotylus had a short neck and a large head, very different from long-necked plesiosaurs like Elasmosaurus.1

Per experts da dinos

Num scientific: Polycotylus
Numnà da: Cope 18693
Gruppa: Plesiosaurs
Famiglia / clada: Polycotylidae3
Classificaziun: Plesiosauria > Sauropterygia3
Vegliadetgna da la crappa: 152 fin 72 milliuns onns (Kimmeridgian / Campanian)3
Formaziuns da crap: Niobrara, Frontier, Mooreville Chalk3
Pajais: USA, Frantscha, Russia3
Chats da fossils: 10 en The Paleobiology Database3
Scuverta: Edward Drinker Cope named Polycotylus in 1869 from fragmentary bones found in the Niobrara Formation of Kansas. A nearly complete skeleton was later found in Alabama in 1949 but not described until 2002.1
Anc discutà: Scientists are not sure exactly how many species of Polycotylus existed, and some species may be the same as others.1

Danunder che vegnan ils fatgs

Polycotylus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Polycotylus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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