Dino kad No. 1040 wɔ 2 027 mu

Leurospondylus

Din no ase: “smooth vertebra”1

Ɔdii: NamPlesiosɔɔKretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

Leurospondylus was a plesiosaur, a long-necked marine reptile that lived in the Late Cretaceous period. It swam in rivers and estuaries in what is now Alberta, Canada. Scientists think it may have spent its early life in brackish water.1

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 72 kɔsi 66 a atwam2

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Alberta, Canada (Horseshoe Canyon Formation, Red Deer River)1 2

Tenten

kɔsi 2 m (6.6 ft)1

Ntɛmntɛm a ɛsen biara

bɛyɛ 27 km/h (17 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?

ne tenten te sɛ fie agyinamoa 4 firi hwene kɔsi duane tenten te sɛ kwadu 11 a wɔde abɔ toatoa soanka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 6.7 mu

Leurospondylus 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)

Leurospondylus bɛyɛ 27 km/h (17 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

The only known fossil of Leurospondylus is a juvenile that was about 2 meters long. Adults may have been much larger.1

Its name means 'smooth vertebra' because its backbone bones were flat and wider than they were long.1

Leurospondylus lived in brackish water (a mix of fresh and salt water) in rivers and estuaries. This is unusual because most plesiosaurs lived in the open ocean.1

When it was first described in 1913, Leurospondylus was thought to be the last known plesiosaur fossil. Its species name 'ultimus' means 'last' in Latin.1

Scientists are not sure which family Leurospondylus belongs to. Its vertebrae look like those of pliosaurs, but its shoulder and hip bones resemble those of elasmosaurids.1

The fossil was found on the east bank of the Red Deer River in Alberta, Canada, in rocks that are about 72 to 66 million years old.2 1

Yei yɛ Leurospondylus 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: Leurospondylus was a dinosaur.

Nokorɛ: Leurospondylus was a plesiosaur, a marine reptile that lived in the sea and rivers. Plesiosaurs are not dinosaurs.1

Ma dino ho animdefoɔ

Nyansahu din: Leurospondylus
Obi a ɔtoo din: Brown 19132
Kuo: Plesiosɔɔ
Abusua / kuo kɛseɛ: Elasmosauridae2
Nkyekyɛmu: Plesiosauria > Elasmosauridae > Sauropterygia2
Abotan no mfeɛ: mfeɛ ɔpepem 72 kɔsi 66 (Maastrichtian)2
Abotan nhyehyɛeɛ: Horseshoe Canyon2
Aman: Kanada2
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu2
Nhunumu: Leurospondylus was named by Barnum Brown in 1913 based on a juvenile fossil found in the Horseshoe Canyon Formation of Alberta, Canada.1 2
Wɔda so gye ho akyinnye: Scientists still debate whether Leurospondylus belongs to the family Elasmosauridae or to a different group, because its bones show a mix of features.1

Baabi a nsɛm no firi

Leurospondylus (en.wikipedia.org)
Leurospondylus in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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