Ikarita ya dinozore nimero 1460 muri 2 027

Polycotylus

Izina risobanura: “much-cupped vertebrae”1

Yaryaga: InyamaPlesiyozoreJurasike ya nyuma kugeza Kiretase ya nyumaMu by'ukuri si dinozore

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

Akantu gashimishije: iki gikururanda cyo mu nyanja cyogaga mu gihe dinozore zagendaga ku butaka. Bose bakita dinozore, ariko cyari mu rindi shami ry'ibikururanda.

Yabayeho

hashize imyaka miliyoni 152 kugeza 723

Jurasike ya nyuma kugeza Kiretase ya nyuma

Ibisigazwa byabonetse muri

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

Uburebure

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

Uburemere

toni 1 (2 200 lb)1

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Yari iremereye ite?

iremereye nk'imbwa 50

ndende nk'imbwa 5 zikurikiranyendende nk'imineke 30 ikurikiranyeiremereye nk'imbuto 200 za watermeloniremereye nk'abana 53 bo mu ishuri ry'incukeiremereye nk'abanyeshuri 31iremereye nk'idubu 2 zo mu ruburayashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 6,7

Polycotylus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Polycotylus nka 27 km/h (17 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

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

Ishusho ya Polycotylus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Polycotylus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri 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

Gusenya ibinyoma

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

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

Ku bazobereye muri dinozore

Izina rya siyansi: Polycotylus
Yiswe na: Cope 18693
Itsinda: Plesiyozore
Umuryango / ishami: Polycotylidae3
Ishyirwa mu byiciro: Plesiosauria > Sauropterygia3
Imyaka y'amabuye: imyaka miliyoni 152 kugeza 72 (Kimmeridgian / Campanian)3
Inzego z'amabuye: Niobrara, Frontier, Mooreville Chalk3
Ibihugu: Amerika, Ubufaransa, Uburusiya3
Ibisigazwa byanditswe: 10 muri The Paleobiology Database3
Ivumburwa: 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
Biracyagibwaho impaka: Scientists are not sure exactly how many species of Polycotylus existed, and some species may be the same as others.1

Aho amakuru yakuwe

Polycotylus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Polycotylus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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