Avalonnectes

Hiika maqaa: “Avalon swimmer”1

Kan nyaate: FoonPileesiyoosarootaJuraasikii JalqabaaSeera saayinsiitiin daayinoosarii miti

Avalonnectes was a small, early plesiosaur that swam in the seas near what is now England, about 200 million years ago. It had a short body and four flippers, and it was one of the very first plesiosaurs to appear after the Triassic,Jurassic extinction.1

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 201 hanga 200 dura4

Juraasikii Jalqabaa

Fosiliiwwan kan itti argaman

Street, Somerset, England, United Kingdom3

Saffisa ol'aanaa

gara 27 km/sa'a (17 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)

Avalonnectes gara 27 km/sa'a (17 mph)

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

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

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Avalonnectes had only 18 or 19 dorsal vertebrae, which is a very low number for a plesiosaur.1

Its skull was only about 180 mm long, making it one of the smallest plesiosaurs of its time.1

Avalonnectes lived in the earliest Jurassic, just after the Triassic,Jurassic extinction event, about 199.6 to 198 million years ago.3

The name Avalonnectes comes from Avalon, the legendary island of King Arthur, which is linked to Glastonbury near where the fossils were found.1

Avalonnectes is known from two partial skeletons, including the holotype NHMUK 14550, which has part of the skull and much of the body.3

It belonged to a group called Rhomaleosauridae, which were early plesiosaurs with short necks and large heads.2

Fakkii AI'n hojjetame: Avalonnectes — Fakkii AI'n hojjetame kan Avalonnectes 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.

Ogeeyyii daayinootiif

Maqaa saayinsii: Avalonnectes
Kan maqaa baase: Benson et al. 20124
Garee: Pileesiyoosaroota
Maatii / kilaadii: Rhomaleosauridae4
Ramaddii: Plesiosauria > Sauropterygia4
Umurii dhagaawwanii: waggaa miliyoona 201 hanga 200 (Hettangian)4
Caasaawwan dhagaa: Blue Lias4
Biyyoota: Biriteen4
Galmee fosilii: 1 The Paleobiology Database keessa4
Argannoo: Avalonnectes was named in 2012 by Roger Benson and colleagues based on fossils collected in the 19th century from Street, Somerset, England. The species name arturi honors Arthur Cruickshank, a scientist who studied early plesiosaurs.1

Odeeffannoon eessaa dhufa

High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic, Jurassic Boundary | PLOS One (journals.plos.org)
PBDB Taxon (paleobiodb.org)
Avalonnectes (en.wikipedia.org)
Avalonnectes in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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