Polycotylus
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
Kur jetoi?
Sa i madh ishte?
Sa i gjatë ishte?
Sa i rëndë ishte?
i gjatë sa 5 qen nga hunda te bishti🍌i gjatë sa 30 banane njëra pas tjetrës🍉i rëndë sa 200 shalqinj🧸i rëndë sa 53 fëmijë kopshti🎒i rëndë sa 31 nxënës🐻❄️i rëndë sa 2 arinj polarë🏊mund të notonte gjatësinë e një pishine të madhe (50 m) për 6,7 sekondaSa i madh ishte Polycotylus krahasuar me TY?
Vetëm matematikë në shfletuesin tënd. Asgjë nuk ruhet dhe asgjë nuk dërgohet askund.
Sa i shpejtë ishte?
Fakte argëtuese
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

Pyetjet më të shpeshta për 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
Shkatërruesi i miteve
Miti: Many people think all plesiosaurs had long necks like the Loch Ness Monster.
E vërteta: Polycotylus had a short neck and a large head, very different from long-necked plesiosaurs like Elasmosaurus.1
Për ekspertët e dinozaurëve
- Emri shkencor
- Polycotylus
- Emërtuar nga
- Cope 18693
- Grupi
- Pleziozaurët
- Familja / klada
- Polycotylidae3
- Klasifikimi
- Plesiosauria > Sauropterygia3
- Mosha e shkëmbinjve
- 152 deri në 72 milionë vjet (Kimmeridgian / Campanian)3
- Formacionet shkëmbore
- Niobrara, Frontier, Mooreville Chalk3
- Vendet
- SHBA, Franca, Rusia3
- Gjetjet fosile
- 10 në The Paleobiology Database3
- Zbulimi
- 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
- Ende i diskutueshëm
- Scientists are not sure exactly how many species of Polycotylus existed, and some species may be the same as others.1
Nga vijnë faktet
- Polycotylus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Polycotylus in The Paleobiology Database (CC BY 4.0): mosha, vendet, formacionet shkëmbore, klasifikimi.
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