ካርድ ዳይኖሰር ቁ. 1565 ካብ 2 027

Russellosaurus

ትርጉም ስሙ: “Russell's lizard, after paleontologist Dale Russell”1 2

ይበልዕ ነበረ: ስጋሞዛሰራትዳሕራይ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Russellosaurus was an ancient marine lizard that swam in the warm seas of Texas about 92 million years ago. It was a fast hunter with a long, slender skull and lots of sharp teeth. Even though it looked a bit like a dinosaur, it was actually a mosasaur, a relative of today's monitor lizards!1 4

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 94 ክሳብ 90 ሚልዮን ዓመት4

ዳሕራይ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

Cedar Hill, Dallas County, Texas, USA4 1

ንውሓት

3 m (9.8 ft)3

ክብደት

70 kg (154 lb)3

ዝለዓለ ቅልጣፈ

ኣስታት 35 ኪ.ሜ/ሰ (22 ማይል/ሰ)

ምሕምባስ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ

ጁራሲክ

ክሬታሸስ

ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

ክንደይ ከቢድ ነይሩ?

ከም 4 ኣኽላባት ዝኸብድ

ከም 3 ኣኽላባት ካብ ኣፍንጫ ክሳብ ጭራ ዝነውሕከም 17 ባናና ተሰሪዑ ዝነውሕከም 14 ሓብሓብ ዝኸብድከም 4 ቆልዑ መዋእለ ህጻናት ዝኸብድከም 2 ተመሃሮ ዝኸብድንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 5.1 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Russellosaurus 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)

Russellosaurus ኣስታት 35 ኪ.ሜ/ሰ (22 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Russellosaurus is the oldest well-preserved mosasaur skull ever found in North America, at about 92 million years old.1 2

The only known fossil is a nearly complete skull, found in 1992 by a fossil hunter named Mark Cohen at a housing construction site.1 2

This mosasaur was small and lightly built, with a narrow skull and 16 teeth on each side of its upper and lower jaws.2

The skull bones were not fully fused together, and the bone surface had lots of blood vessels, showing the animal was still growing fast when it died.1 2

Russellosaurus is the name-giver for a whole group of mosasaurs called Russellosaurina, which includes the famous Tylosaurus and Plioplatecarpus.1 2

It lived alongside another early mosasaur called Dallasaurus, which still had legs and could probably walk on land.2

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

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Russellosaurus
ዝሰመዮ: Polcyn and Bell 20054
ጉጅለ: ሞዛሰራት
ስድራ / ክላድ: Mosasauridae4
ምድባ: Mosasauroidea4
ዕድመ እቶም ኣኻውሕ: 94 ክሳብ 90 ሚልዮን ዓመት (Turonian)4
ናይ ኣኻውሕ ንብርብራት: Arcadia Park Shale4
ሃገራት: ኣመሪካ4
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database4
ርኽበት: Russellosaurus was named in 2005 by paleontologists Michael Polcyn and G.L. Bell. The skull was discovered in 1992 by Mark Cohen, a member of the Dallas Paleontological Society, at a housing construction site in Cedar Hill, Texas.1 2
ገና ዘከራኽር: Scientists are not sure exactly how big Russellosaurus grew, because only its skull has been found and no body bones.2