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Karete ya dinosaure No. 0801 ho tse 2 027

Hesperornis

Lebitso le bolela: “western bird”1

E jele: DitlhapiDinonyana tsa peleKretase ya Morao

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

E phetse

dilemo tse dimilione tse 90 ho isa ho 66 tse fetileng5

Kretase ya Morao

Difosili di fumanwe ho

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

Bolelele

1.5 ho isa ho 1.8 m (4.9 ho isa ho 5.9 ft)1

Boima

10.6 kg (23 lb)1

Bophahamo

0.81 m (2.7 ft)

kakanyo

Lebelo le phahameng ka ho fetisisa

e ka bang 16 km/h (10 mph)

Ho sesa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e phahame hakae?

kakanyo

E ne e le boima hakae?

boima jwaloka dikatse tsa lapeng tse 2.5

telele jwaloka dikatse tsa lapeng tse 4 ho tloha nkong ho isa mohatlengtelele jwaloka dibanana tse 10 di behilwe ka molaboima jwaloka dibanana tse 88e ne e ka sesa bolelele ba letamo le leholo la ho sesa (50 m) ka metsotswana e 11

Hesperornis e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Hesperornis e ka bang 16 km/h (10 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

Setshwantsho sa Hesperornis se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Hesperornis e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka Hesperornis

?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

Mosenyi wa ditshomo

Tshomo: Some people think Hesperornis was a dinosaur.

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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Hesperornis
E rehilwe ke: Marsh 18725
Sehlopha: Dinonyana tsa pele
Lelapa / leloko: Hesperornithidae5
Tlhophiso: Theropoda > Avialae5
Dilemo tsa mafika: dilemo tse dimilione tse 90 ho isa ho 66 (Coniacian / Maastrichtian)5
Dibopeho tsa mafika: Pierre Shale, Rybushka, Niobrara5
Dinaha: Kanada, Amerika, Russia, Sweden5
Direkoto tsa difosili: 65 ho The Paleobiology Database5
E boetse e tsejwa e le: Coniornis, Hargeria, Lestornis (mabitso a kgale jwale a balwa e le phoofolo e le nngwe)5
Ho sibollwa: 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
E sa ntse e phehwa kgang: Scientists are still debating exactly how many species of Hesperornis existed, because many fossils are incomplete.1

Moo dintlha di tswang teng

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): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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