Unktaheela

Naam beteken: “from the Lakota word for a mythical water creature”1

Het geëet: VleisPlesiosourusseLaat KrytTegnies nie 'n dinosourus nie

Unktaheela was a small, fast-swimming marine reptile that lived in the sea that once covered North America. It had a short neck, a big head with a long snout, and four flippers that worked like paddles. It was one of the smallest plesiosaurs ever found.2

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

84 tot 72 miljoen jaar gelede3

Laat Kryt

Fossiele gevind in

Wyoming and South Dakota, USA3 1

Lengte

2,3 tot 2,6 m (7,5 tot 8,5 ft)2

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?

so lank soos 2,5 honde van neus tot stertso lank soos 14 piesangs punt aan puntkon die lengte van 'n groot swembad (50 m) in 6,7 sekondes swem

Hoe groot was Unktaheela 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)

Unktaheela 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

Unktaheela is the smallest known adult polycotylid plesiosaur, measuring only about 2.3 to 2.6 metres long.2

It had bony ledges over its large eyes that may have shaded them from sunlight, like built-in sunglasses.2

Its skull was wide at the back and short behind the eyes, which helped it spot and catch prey.2

Unktaheela lived about 80 million years ago in the Western Interior Seaway, a shallow sea that split North America in two.2

Scientists think Unktaheela was a visual pursuit predator, meaning it chased its food using its sharp eyesight.2

The first fossil of Unktaheela was found in 1975 near Redbird, Wyoming, but it was not named until 2024.1 2

KI-prent van Unktaheela — 'n KI-prent van hoe Unktaheela 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.

Vir dino-kenners

Wetenskaplike naam: Unktaheela
Benoem deur: Clark et al. 20243
Groep: Plesiosourusse
Familie / klade: Polycotylidae3
Klassifikasie: Plesiosauria > Sauropterygia3
Ouderdom van die rotse: 84 tot 72 miljoen jaar (Campanian)3
Rotsformasies: Sharon Springs3
Lande: VSA3
Fossielrekords: 2 in The Paleobiology Database3
Ontdekking: Unktaheela was named in 2024 by Robert O. Clark, F. Robin O'Keefe, and Sara E. Slack based on two fossils from Wyoming and South Dakota.3 1
Steeds omstrede: Scientists are still debating exactly how Unktaheela used its unusual eye ledges and wide skull to hunt.2

Waar die feite vandaan kom

Unktaheela (en.wikipedia.org)
A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops (sciencedirect.com)
Unktaheela in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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