Metashastasaurus

Lebitso le bolela: “near Shastasaurus”1

E jele: NamaDiikhthiosaureTriasiki ya MoraoHa se dinosaure ho ya ka saense

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

Ntlha e monate: sehahabi sena sa lewatle se ne se sesa ha didinosaure di ntse di tsamaya naheng. Bohle ba di bitsa didinosaure, empa e ne e le lekala le leng la dihahabi.

E phetse

dilemo tse dimilione tse 227 ho isa ho 206 tse fetileng3

Triasiki ya Morao

Difosili di fumanwe ho

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

Lebelo le phahameng ka ho fetisisa

e ka bang 46 km/h (29 mph)

Ho sesa, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

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)

Metashastasaurus e ka bang 46 km/h (29 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

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

Setshwantsho sa Metashastasaurus se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Metashastasaurus 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.

Mosenyi wa ditshomo

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

Nnete: 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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Metashastasaurus
E rehilwe ke: Nicholls and Manabe 20013
Sehlopha: Diikhthiosaure
Lelapa / leloko: Shastasauridae3
Tlhophiso: Ichthyosauria > Ichthyosauromorpha3
Dilemo tsa mafika: dilemo tse dimilione tse 227 ho isa ho 206 (Norian)3
Dibopeho tsa mafika: Pardonet3
Dinaha: Kanada3
Direkoto tsa difosili: 2 ho The Paleobiology Database3
Ho sibollwa: 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
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

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

Ntlha e nngwe le e nngwe leqepheng lena e na le nomoro e supang mohlodi wa yona. Haeba re fositse ho hong, re kopa tshwarelo, re balatedi ba didinosaure, ha re koranta ya saense. Re bolelle ho [email protected] mme re tla e lokisa.

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