Dino kad No. 1173 wɔ 2 027 mu

Metashastasaurus

Din no ase: “near Shastasaurus”1

Ɔdii: NamIktiosɔɔTriasik AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

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

Asɛm a ɛyɛ anigye: ɛpo mu aboa a ɔwea yi guaree berɛ a dinosɔɔ nantew asase so. Obiara frɛ wɔn dino, nanso na wɔyɛ mmoa a wɔwea abusua foforɔ.

Ɔtenaa ase

mfeɛ ɔpepem 227 kɔsi 206 a atwam3

Triasik Awieeɛ

Wɔhunuu fɔsil wɔ

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

Ntɛmntɛm a ɛsen biara

bɛyɛ 46 km/h (29 mph)

Nsuguareɛ, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

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

Metashastasaurus bɛyɛ 46 km/h (29 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

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

Yei yɛ Metashastasaurus 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.

Atosɛm sɛefoɔ

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

Nokorɛ: 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

Ma dino ho animdefoɔ

Nyansahu din: Metashastasaurus
Obi a ɔtoo din: Nicholls and Manabe 20013
Kuo: Iktiosɔɔ
Abusua / kuo kɛseɛ: Shastasauridae3
Nkyekyɛmu: Ichthyosauria > Ichthyosauromorpha3
Abotan no mfeɛ: mfeɛ ɔpepem 227 kɔsi 206 (Norian)3
Abotan nhyehyɛeɛ: Pardonet3
Aman: Kanada3
Fɔsil nkyerɛwee: 2 wɔ The Paleobiology Database mu3
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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