Kartu dino No. 1862 ci 2 027

Unktaheela

Tur bi mooy: “from the Lakota word for a mythical water creature”1

Lekkoon: YàppPlesiyosoor yiKretase bu mujjCi xam-xam, du dinosoor

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

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 84 ba 72 milyoŋ at3

Kretase bu mujj

Fosil yu ñu gis ci

Wyoming and South Dakota, USA3 1

Guddaay

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

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?

gudd ni 2,5 xaj, bakkan ba geengudd ni 14 banaana yu ñu topp-toppalemënoon na féey guddaayu pisin bu mag (50 m) ci 6,7 segond

Naka la Unktaheela 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)

Unktaheela 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

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

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

Ngir ñi xam dino lool

Turu xam-xam: Unktaheela
Ku ko tudde: Clark et al. 20243
Kurél: Plesiyosoor yi
Njaboot / klad: Polycotylidae3
Klasifikasiyoŋ: Plesiosauria > Sauropterygia3
Màggaayu doj yi: 84 ba 72 milyoŋ at (Campanian)3
Formasiyoŋi doj: Sharon Springs3
Réew yi: Amerig3
Fosil yu ñu gis: 2 ci The Paleobiology Database3
Gisees: 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
Ñu ngi koy werante ba tey: Scientists are still debating exactly how Unktaheela used its unusual eye ledges and wide skull to hunt.2

Fa xibaar yi jóge

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): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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