Metashastasaurus

Hiika maqaa: “near Shastasaurus”1

Kan nyaate: FoonIkteyoosarootaTiraayaasikii DhumaaSeera saayinsiitiin daayinoosarii miti

Metashastasaurus was a huge marine reptile that swam in the oceans during the Late Triassic, about 227 to 205 million years ago. It was not a dinosaur, but a kind of ichthyosaur, with a body like a dolphin and a long snout. It lived in the seas near what is now British Columbia, Canada.1 2

Odeeffannoo bashannansiisaa: harkifataan galaanaa kun yeroo daayinoosarootni lafa irra deemaa turan daakaa ture. Namni hundi daayinoo jedhee isaan waama, garuu damee harkifattootaa adda ta'e turan.

Kan jiraate

waggaa miliyoona 227 hanga 206 dura3

Tiraayaasikii Dhumaa

Fosiliiwwan kan itti argaman

Fossils were found in the Pardonet Formation of British Columbia, Canada.2

Saffisa ol'aanaa

gara 46 km/sa'a (29 mph)

Daakuu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Metashastasaurus gara 46 km/sa'a (29 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Metashastasaurus was first named in 2001 by scientists Nicholls and Manabe.1

Its skeleton is very similar to other shastasaurid ichthyosaurs, but its shoulder blade and fibula (a leg bone) are shaped differently.2

Its skull has large diamond-shaped frontals (bones on top of the head) that enter the supratemporal fenestrae, which are openings in the skull.2

It had four proximal carpals (wrist bones) and four digits in its front limb, showing that earlier reconstructions were based on incomplete material.2

Metashastasaurus lived in a marine environment and was nektonic, meaning it swam actively in the open water.1

It gave birth to live young, like other ichthyosaurs, rather than laying eggs.1

Fakkii AI'n hojjetame: Metashastasaurus — Fakkii AI'n hojjetame kan Metashastasaurus maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

Seenaa sobaa diigaa

Seenaa sobaa: Some people think Metashastasaurus was a dinosaur because it lived in the same time as dinosaurs.

Dhugaa: Metashastasaurus was an ichthyosaur, a marine reptile, not a dinosaur. Ichthyosaurs lived in the sea and had fish-like bodies, while dinosaurs were land reptiles.1

Ogeeyyii daayinootiif

Maqaa saayinsii: Metashastasaurus
Kan maqaa baase: Nicholls and Manabe 20013
Garee: Ikteyoosaroota
Maatii / kilaadii: Shastasauridae3
Ramaddii: Ichthyosauria > Ichthyosauromorpha3
Umurii dhagaawwanii: waggaa miliyoona 227 hanga 206 (Norian)3
Caasaawwan dhagaa: Pardonet3
Biyyoota: Kanaadaa3
Galmee fosilii: 2 The Paleobiology Database keessa3
Argannoo: Metashastasaurus was named by Nicholls and Manabe in 2001 after they studied new specimens from Pink Mountain, British Columbia. These specimens showed that the species previously called Shastasaurus neoscapularis was different enough to be placed in a new genus.2
Ammallee falmisiisaa: Scientists are still debating whether the genus Shastasaurus is valid, because its type species is based on poor fossils. Metashastasaurus was created to help clarify this, but the relationships between these ichthyosaurs are still not fully settled.2

Odeeffannoon eessaa dhufa

PBDB Taxon (paleobiodb.org)
A new genus of ichthyosaur from the Late Triassic... : Canadian Journal of Earth Sciences (ovid.com)
Metashastasaurus in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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