Dino kad No. 1229 wɔ 2 027 mu

Nakonanectes

Din no ase: “Nakona swimmer”1

Ɔdii: NamPlesiosɔɔKretasias AwieeɛNyansahu mu deɛ, ɔnyɛ dinosɔɔ

Nakonanectes was a plesiosaur, a marine reptile that lived in the sea, not a dinosaur. It had a shorter neck than most of its relatives, making it a special kind of elasmosaurid.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 72 kɔsi 66 a atwam4

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Montana, USA3 1

Tenten

5.1 kɔsi 5.6 m (17 kɔsi 18 ft)1 2

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 nkraman 6 firi hwene kɔsi duane tenten te sɛ kwadu 31 a wɔde abɔ toatoa soanka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 6.7 mu

Nakonanectes 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)

Nakonanectes 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

Nakonanectes had only 39 to 42 neck bones, while many other elasmosaurids had over 70.1 2

It was one of the smallest adult elasmosaurids ever found, measuring only 5.1 to 5.6 metres long.1 2

The fossil was discovered in 2010 by a hunter named David Bradt in a canyon in Montana.1

Nakonanectes lived about 72 to 66 million years ago, at the end of the Age of Dinosaurs.3

Its skull was found nearly complete, which is rare for elasmosaurid fossils.1 2

Short-necked elasmosaurids like Nakonanectes evolved from long-necked ancestors in different parts of the world.1 2

Yei yɛ Nakonanectes 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.

Ma dino ho animdefoɔ

Nyansahu din: Nakonanectes
Obi a ɔtoo din: Serratos et al. 20174
Kuo: Plesiosɔɔ
Abusua / kuo kɛseɛ: Elasmosauridae4
Nkyekyɛmu: Plesiosauria > Elasmosauridae > Sauropterygia4
Abotan no mfeɛ: mfeɛ ɔpepem 72 kɔsi 66 (Maastrichtian)4
Abotan nhyehyɛeɛ: Bearpaw Shale4
Aman: Amerika4
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu4
Nhunumu: Nakonanectes was named in 2017 by Danielle Serratos, Patrick Druckenmiller, and Roger Benson. The fossil was found in 2010 by hunter David Bradt in the Bearpaw Shale of Montana, USA.1 3
Wɔda so gye ho akyinnye: Scientists are still debating whether Nakonanectes belongs to the Styxosaurinae or Elasmosaurinae group.3

Baabi a nsɛm no firi

Nakonanectes (en.wikipedia.org)
A New Elasmosaurid (Sauropterygia, Plesiosauria) from the Bearpaw Shale (Late Cretaceous, Maastrichtian) of Montana Demonstrates Multiple Evolutionary Reductions of Neck Length Within Elasmosauridae (bioone.org)
paleobiodb.org (paleobiodb.org)
Nakonanectes in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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