Kartu dino No. 1460 ci 2 027

Polycotylus

Tur bi mooy: “much-cupped vertebrae”1

Lekkoon: YàppPlesiyosoor yiJurasik bu mujj ba Kretase bu mujjCi xam-xam, du dinosoor

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

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 152 ba 72 milyoŋ at3

Jurasik bu mujj ba Kretase bu mujj

Fosil yu ñu gis ci

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

Guddaay

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

Diisaay

1 toon (2 200 lb)1

Gaawaay bi gën a kawe

lu tollu ci 27 km/h (17 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 50 xaj

gudd ni 5 xaj, bakkan ba geengudd ni 30 banaana yu ñu topp-toppalediis ni 200 xaaldiis ni 53 xale yu materneldiis ni 31 xale yu lekkooldiis ni 2 uurs yu weexmënoon na féey guddaayu pisin bu mag (50 m) ci 6,7 segond

Naka la Polycotylus 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)

Polycotylus lu tollu ci 27 km/h (17 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

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

Nataalu Polycotylus bu ñu def ak IA — Nataal bu IA def la, muy wone ni Polycotylus 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 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

Ku tas léeb yu dul dëgg

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

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

Ngir ñi xam dino lool

Turu xam-xam: Polycotylus
Ku ko tudde: Cope 18693
Kurél: Plesiyosoor yi
Njaboot / klad: Polycotylidae3
Klasifikasiyoŋ: Plesiosauria > Sauropterygia3
Màggaayu doj yi: 152 ba 72 milyoŋ at (Kimmeridgian / Campanian)3
Formasiyoŋi doj: Niobrara, Frontier, Mooreville Chalk3
Réew yi: Amerig, Faraas, Riisi3
Fosil yu ñu gis: 10 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: Scientists are not sure exactly how many species of Polycotylus existed, and some species may be the same as others.1

Fa xibaar yi jóge

Polycotylus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Polycotylus in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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