Dino Wiki / Alle dino's / Plesiosourusse

Dinokaart nr. 1460 van 2 027

Polycotylus

Naam beteken: “much-cupped vertebrae”1

Het geëet: VleisPlesiosourusseLaat Jura tot Laat KrytTegnies nie 'n dinosourus nie

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

Prettige feit: hierdie seereptiel het geswem terwyl dinosourusse op land geloop het. Almal noem hulle dino's, maar hulle was 'n ander tak van die reptiele.

Het geleef

152 tot 72 miljoen jaar gelede3

Laat Jura tot Laat Kryt

Fossiele gevind in

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

Lengte

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

Gewig

1 ton (2 200 lb)1

Topspoed

omtrent 27 km/h (17 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe swaar was dit?

so swaar soos 50 honde

so lank soos 5 honde van neus tot stertso lank soos 30 piesangs punt aan puntso swaar soos 200 waatlemoeneso swaar soos 53 kleuterskoolkindersso swaar soos 31 skoolkindersso swaar soos 2 ysberekon die lengte van 'n groot swembad (50 m) in 6,7 sekondes swem

Hoe groot was Polycotylus vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Polycotylus omtrent 27 km/h (17 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Polycotylus — 'n KI-prent van hoe Polycotylus dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

julle het gevra

Mees gevraagde vrae oor 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

Mite-breker

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

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

Vir dino-kenners

Wetenskaplike naam: Polycotylus
Benoem deur: Cope 18693
Groep: Plesiosourusse
Familie / klade: Polycotylidae3
Klassifikasie: Plesiosauria > Sauropterygia3
Ouderdom van die rotse: 152 tot 72 miljoen jaar (Kimmeridgian / Campanian)3
Rotsformasies: Niobrara, Frontier, Mooreville Chalk3
Lande: VSA, Frankryk, Rusland3
Fossielrekords: 10 in The Paleobiology Database3
Ontdekking: 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
Steeds omstrede: Scientists are not sure exactly how many species of Polycotylus existed, and some species may be the same as others.1

Waar die feite vandaan kom

Polycotylus (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Polycotylus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dino-aanhangers, nie 'n wetenskapjoernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

Rex is honger! Dino Wiki is 'n pa se projek vir sy seun wat mal is oor dino's, gratis met geen advertensies en geen spoorsnyers nie. Grootmense kan vir Rex 'n peuselhappie gee om te help om dit aanlyn te hou.Voer Rex