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Dino kad No. 0801 wɔ 2 027 mu

Hesperornis

Din no ase: “western bird”1

Ɔdii: NsuomnamNnomaa a wɔdii kanKretasias Awieeɛ

Hesperornis was a giant swimming bird that lived in the time of dinosaurs. It had teeth in its beak and could not fly, but it was a super diver in the ancient seas.1 2

Ɔtenaa ase

mfeɛ ɔpepem 90 kɔsi 66 a atwam5

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

North America (Kansas, Montana, South Dakota, Alaska, Canada), Russia, and Sweden5 1

Tenten

1.5 kɔsi 1.8 m (4.9 kɔsi 5.9 ft)1

Mu duru

10.6 kg (23 lb)1

Korɔn

0.81 m (2.7 ft)

nsusuiɛ

Ntɛmntɛm a ɛsen biara

bɛyɛ 16 km/h (10 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne korɔn yɛ sɛn?

nsusuiɛ

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ fie agyinamoa 2.5

ne tenten te sɛ fie agyinamoa 4 firi hwene kɔsi duane tenten te sɛ kwadu 10 a wɔde abɔ toatoa sone mu duru te sɛ kwadu 88anka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 11 mu

Hesperornis kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Hesperornis bɛyɛ 16 km/h (10 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

Hesperornis was one of the first birds to give up flying and become a full-time swimmer.2

Its legs were placed far back on its body, like a loon, making it clumsy on land but a powerful diver.1

Hesperornis had teeth in its beak, which is rare for birds. It used them to catch fish.1 2

The first fossils of Hesperornis were found by famous fossil hunter Othniel Charles Marsh in 1870 in Kansas.1 2

Several species of Hesperornis lived from about 90 to 66 million years ago, during the Late Cretaceous.5

Hesperornis fossils have been found in many places, including Canada, the United States, Russia, and Sweden.5

Yei yɛ Hesperornis mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

wobisaeɛ

Nsɛm a wɔbisa bebree fa Hesperornis ho

?How big was Hesperornis?

About 1.5 to 2 metres (4.9 to 6.6 ft) long and weighed around 10.6 kilograms (23 lb).1

?Did Hesperornis have teeth?

Yes, it had teeth in its beak, which is rare for birds. The teeth sat in a groove, not in individual sockets.1

?Could Hesperornis fly?

No, it could not fly. Its wings were tiny and useless for flight, and its breastbone lacked a keel for flight muscles.1 3

?What did Hesperornis eat?

It ate fish, which it caught with its tooth-lined beak while diving in the sea.4

?When did Hesperornis live?

It lived during the Late Cretaceous period, about 83.6 to 72 million years ago, and possibly into the early Maastrichtian.1

?Where was Hesperornis found?

Fossils have been found in Kansas, Canada, Russia, Sweden, and other places, mostly in marine rocks.1

?Could Hesperornis walk on land?

It was clumsy on land. Its legs were placed far back, so it probably pushed itself along on its belly like a seal.1

Atosɛm sɛefoɔ

Atosɛm: Some people think Hesperornis was a dinosaur.

Nokorɛ: Hesperornis was a bird, not a dinosaur. Birds evolved from dinosaurs, but Hesperornis itself is classified as a bird.1

Ma dino ho animdefoɔ

Nyansahu din: Hesperornis
Obi a ɔtoo din: Marsh 18725
Kuo: Nnomaa a wɔdii kan
Abusua / kuo kɛseɛ: Hesperornithidae5
Nkyekyɛmu: Theropoda > Avialae5
Abotan no mfeɛ: mfeɛ ɔpepem 90 kɔsi 66 (Coniacian / Maastrichtian)5
Abotan nhyehyɛeɛ: Pierre Shale, Rybushka, Niobrara5
Aman: Kanada, Amerika, Rɔhyea, Swiidin5
Fɔsil nkyerɛwee: 65 wɔ The Paleobiology Database mu5
Wɔsan frɛ no: Coniornis, Hargeria, Lestornis (din dada no nso, yɛkan no sɛ aboa korɔ no ara)5
Nhunumu: Othniel Charles Marsh discovered the first Hesperornis fossil in 1870 near the Smoky Hill River in Kansas. He named it Hesperornis regalis in 1872.1 2
Wɔda so gye ho akyinnye: Scientists are still debating exactly how many species of Hesperornis existed, because many fossils are incomplete.1

Baabi a nsɛm no firi

Hesperornis (en.wikipedia.org)
The Hesperornithiformes: A Review of the Diversity, Distribution, and Ecology of the Earliest Diving Birds (mdpi.com)
Hesperornis - Scholars | Britannica Kids | Encyclopedia (kids.britannica.com)
Hesperornis Facts, Artwork, Information - National Geographic | National Geographic (nationalgeographic.com)
Hesperornis in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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