ካርድ ዳይኖሰር ቁ. 0670 ካብ 2 027

Fresnosaurus

ትርጉም ስሙ: “Fresno lizard, named after Fresno County in California”1

ይበልዕ ነበረ: ስጋፕሌሲዮሰራትዳሕራይ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Fresnosaurus was a huge swimming reptile with a very long neck and flippers instead of legs. It lived in the sea near California during the time of the dinosaurs, but it was not a dinosaur. It probably used its long neck to sneak up on fish and other small sea creatures.1 3

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

Fresno County, California, USA, in the Moreno Formation1 2

ንውሓት

ክሳብ 9 m (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 Fresnosaurus 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)

Fresnosaurus 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

Fresnosaurus lived about 70 to 66 million years ago, right at the end of the Age of Dinosaurs.1

The only known fossil is from a young animal, so scientists think adults might have been even bigger than 9 meters (30 feet).2

Its name honors Fresno County, and the species name 'drescheri' honors Arthur Drescher, who likely helped find the fossil.1

Fresnosaurus belonged to a group called elasmosaurids, famous for their extremely long necks and paddle-like flippers.1 3

The fossil includes bones like the coracoids (shoulder bones), humerus (upper arm bone), pelvic girdle, and femora (thigh bones), but no skull has been found.2

Scientists recently found that some extra bones labeled as Fresnosaurus might actually belong to a different, related plesiosaur called an aristonectine.2

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

ጽውጽዋይ ዘፍርስ

ጽውጽዋይ: Some people think Fresnosaurus was a dinosaur because it lived with dinosaurs and is often shown in dinosaur books.

ሓቂ: Fresnosaurus was a plesiosaur, a marine reptile, not a dinosaur. Dinosaurs lived on land and had different body shapes.1 3

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Fresnosaurus
ዝሰመዮ: Welles 19433
ጉጅለ: ፕሌሲዮሰራት
ስድራ / ክላድ: Elasmosauridae3
ምድባ: Plesiosauria > Elasmosauridae > Sauropterygia3
ዕድመ እቶም ኣኻውሕ: 72 ክሳብ 66 ሚልዮን ዓመት (Maastrichtian)3
ናይ ኣኻውሕ ንብርብራት: Moreno3
ሃገራት: ኣመሪካ3
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database3
ርኽበት: Fresnosaurus was first described by Samuel Paul Welles in 1943, based on a fossil found in the Moreno Formation of California. The fossil was originally stored at the California Institute of Technology and is now at the Natural History Museum of Los Angeles County.1 2
ገና ዘከራኽር: Scientists are still debating whether Fresnosaurus is a valid, separate genus or if it might be the same as another elasmosaurid, because the only fossil is incomplete and from a juvenile.2