ካርድ ዳይኖሰር ቁ. 0164 ካብ 2 027

Argentinonectes

ትርጉም ስሙ: “Lake Argentino swimmer”1

ይበልዕ ነበረ: ስጋፕሌሲዮሰራትዳሕራይ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Argentinonectes was a huge, long-necked marine reptile that swam in the seas near Antarctica 66 million years ago. It had four flipper-like legs and a stiff tail that may have had a fin on the end. This plesiosaur is the most complete one ever found in Argentina!1

ደስ ዝብል ሓቂ: እዚ ናይ ባሕሪ ተሳሓባይ ዳይኖሰራት ኣብ ምድሪ ክኸዱ ከለዉ ይሕምብስ ነበረ። ኩሉ ሰብ ዳይኖሰር ይብሎም፣ ግን ካልእ ጨንፈር ተሳሓብቲ እዮም ነይሮም።

ዝነበረሉ

ቅድሚ 72 ክሳብ 66 ሚልዮን ዓመት3

ዳሕራይ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

Calafate Formation, Santa Cruz Province, Argentina1 2

ንውሓት

7 ክሳብ 9 m (23 ክሳብ 30 ft)1

ዝለዓለ ቅልጣፈ

ኣስታት 23 ኪ.ሜ/ሰ (14 ማይል/ሰ)

ምሕምባስ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

ከም 2 መካይን ብመስርዕ ዝቖማ ዝነውሕከም 50 ባናና ተሰሪዑ ዝነውሕንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 7.8 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Argentinonectes ክንደይ ዓቢ ነይሩ?

ኣብ ብራውዘርካ ቀሊል ሕሳብ ጥራይ። ዝዕቀብ ወይ ናብ ዝኾነ ቦታ ዝለኣኽ የለን።

ክንደይ ቅልጡፍ ነይሩ?

ዝኸይድ ሰብ ኣስታት 5 ኪ.ሜ/ሰ (3 mph)

ብሽክለታ ዝጋልብ ቆልዓ ኣስታት 12 ኪ.ሜ/ሰ (7 mph)

Argentinonectes ኣስታት 23 ኪ.ሜ/ሰ (14 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

The fossil was found under 50 cm (20 inches) of water in Lake Argentino, making it tricky to dig out.1

Its rib cage and belly bones were very stiff, which helped it dive without its lungs collapsing.1

Shark teeth and scratches on its bones show that sharks ate the dead plesiosaur's body.1

The tail had eight tightly locked vertebrae at the tip, probably supporting a small tail fin.1

Its forelimbs were about 1.8 metres (5.9 feet) long, and the hindlimbs were a bit shorter at 1.3 metres (4.3 feet).1

The skeleton is missing the skull and most of the neck, possibly because they floated away after death.1

ብAI ዝተሰርሐ ስእሊ ናይ Argentinonectes — ብAI ዝተሰርሐ ስእሊ፣ Argentinonectes ከመይ ይመስል ከም ዝነበረ ዘርኢ፣ ኮምፒተር ካብቲ ሳይንቲስታት ዝፈልጥዎ ዝሰርሖ። ግምት እዩ: እቲ ሓቀኛ እንስሳ ፍልይ ዝበለ ክመስል ይኽእል፣ ሓቀኛ ሕብሩ ድማ ዝፈልጦ የለን።

ንስኻ ሓቲትካ

ብዛዕባ Argentinonectes ብብዝሒ ዝሕተቱ ሕቶታት

?How big was Argentinonectes?

It was about 7 to 9 metres (23 to 30 feet) long. That is roughly as long as a school bus.1

?What did Argentinonectes eat?

Scientists do not know for sure because the skull is missing. But like other plesiosaurs, it probably ate fish and squid.1

?When did Argentinonectes live?

It lived at the very end of the Cretaceous Period, about 66 million years ago.1

?Is Argentinonectes a dinosaur?

No, it is a plesiosaur, a marine reptile that swam in the ocean. It is not a dinosaur.1

ጽውጽዋይ ዘፍርስ

ጽውጽዋይ: Some people think all plesiosaurs were slow and clumsy on land.

ሓቂ: Argentinonectes and other plesiosaurs were fully aquatic and never came onto land. They were fast swimmers in the ocean.1

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Argentinonectes
ዝሰመዮ: Novas et al. 20263
ጉጅለ: ፕሌሲዮሰራት
ስድራ / ክላድ: Elasmosauridae3
ምድባ: Plesiosauria > Elasmosauridae > Sauropterygia3
ዕድመ እቶም ኣኻውሕ: 72 ክሳብ 66 ሚልዮን ዓመት (Maastrichtian)3
ናይ ኣኻውሕ ንብርብራት: Calafate3
ሃገራት: ኣርጀንቲና3
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database3
ርኽበት: The fossil was found in 2009 in Lake Argentino, Argentina, and was named Argentinonectes calafatensis by Fernando Novas and colleagues in 2026.1
ገና ዘከራኽር: Scientists are not sure why the skull and neck are missing. They may have been eroded by waves or detached when the body bloated and floated.1

ሓቅታት ካበይ ይመጹ

Argentinonectes (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Argentinonectes in The Paleobiology Database (CC BY 4.0): ዕድመ፣ ቦታታት፣ ናይ ኣኻውሕ ንብርብራት፣ ምድባ።

ኣብዚ ገጽ ዘሎ ኩሉ ሓቂ ናብ ምንጩ ዘመልክት ቁጽሪ ኣለዎ። ጌጋ እንተ ጌርና፣ ይቕሬታ፣ ንሕና ፈተውቲ ዳይኖሰር ኢና፣ ሳይንሳዊ መጽሔት ኣይኮንናን። ኣብ [email protected] ንገረና፣ ክንእርሞ ኢና።

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