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ካርቱን ናይ Rikisaurus
ካርድ ዳይኖሰር ቁ. 1552 ካብ 2 027

Rikisaurus

ትርጉም ስሙ: “Riki's lizard”3
ይበልዕ ነበረ: ስጋሞዛሰራትዳሕራይ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Rikisaurus was a marine lizard that swam in the warm seas near New Zealand about 80 million years ago. It was a mosasaur, a relative of today's monitor lizards, but with flippers instead of legs. This predator hunted fish and other sea creatures with its long, pointed snout and many small teeth.31

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 84 ክሳብ 66 ሚልዮን ዓመት3
ዳሕራይ ክሬታሸስ
ፎሲላት ዝተረኽቡሉ
Mangahouanga Stream, Hawke's Bay, North Island, New Zealand31
ንውሓት
2 ክሳብ 3 m (6.6 ክሳብ 9.8 ft)1
ዝለዓለ ቅልጣፈ
ኣስታት 33 ኪ.ሜ/ሰ (21 ማይል/ሰ)
ምሕምባስ, ግምት

መዓስ እዩ ዝነበረ?

ትሪያሲክ
ጁራሲክ
ክሬታሸስ
ቅድሚ 252 ሚልዮን ዓመት20114566፣ እቲ ኣስተሮይድ

ክንደይ ዓቢ ነይሩ?

ክንደይ ነዊሕ ነይሩ?

Rikisaurus ኣስታት 3 ሜ ንውሓት (9.8 ft)ናይ ዓበይቲ ብሽክለታ ኣስታት 1.8 ሜ (5.9 ft)መኪና ኣስታት 4.5 ሜ (15 ft)ሓርማዝ፣ ሎሚ ኣብ ምድሪ ዝዓበየ እንስሳ ኣስታት 6.5 ሜ (21 ft)
ከም 3 ኣኽላባት ካብ ኣፍንጫ ክሳብ ጭራ ዝነውሕከም 17 ባናና ተሰሪዑ ዝነውሕንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 5.5 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Rikisaurus ክንደይ ዓቢ ነይሩ?

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

ክንደይ ቅልጡፍ ነይሩ?

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

1

Rikisaurus had a very long, slender snout that tapered to a point, and its upper jaw had 13 or 14 teeth on each side.1

2

Its teeth were small, with two ridges (bicarinate), and the enamel was smooth.1

3

The lower jaw had 15 or 16 teeth and deepened in the middle, giving it a semicircular bump (coronoid).1

4

Rikisaurus is known from only one fossil: a skull and four neck bones found in New Zealand.1

5

It lived between 83.6 and 66 million years ago, during the Campanian and Maastrichtian ages of the Late Cretaceous.1

6

Scientists think Rikisaurus was a small adult mosasaur, about the size of a modern dolphin.1

ብAI ዝተሰርሐብAI ዝተሰርሐ ስእሊ ናይ Rikisaurus
ብAI ዝተሰርሐ ስእሊ፣ Rikisaurus 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 Rikisaurus ብብዝሒ ዝሕተቱ ሕቶታት

?Is Rikisaurus a dinosaur?

No, it is a mosasaur, a marine reptile related to today's monitor lizards, not a dinosaur.23

?How big was Rikisaurus?

It was a small adult mosasaur, about the size of a modern dolphin, though exact length is not given in the sources.3

?What did Rikisaurus eat?

It was a carnivore that hunted fish and other sea creatures with its long, pointed snout and many small teeth.3

?Where was Rikisaurus found?

Its only known fossil, a skull and four neck bones, was found in the Mangahouanga Stream in New Zealand.3

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም
Rikisaurus
ዝሰመዮ
Wiffen 19903
ጉጅለ
ሞዛሰራት
ስድራ / ክላድ
Mosasauridae3
ምድባ
Mosasauroidea3
ዕድመ እቶም ኣኻውሕ
84 ክሳብ 66 ሚልዮን ዓመት (Campanian / Maastrichtian)3
ናይ ኣኻውሕ ንብርብራት
Tahora3
ሃገራት
ኒው ዚላንድ3
መዛግብቲ ፎሲል
1 ኣብ The Paleobiology Database3
ርኽበት
Rikisaurus was named by paleontologist J. Wiffen in 1990, based on a skull and neck bones found in the Tahora Formation of New Zealand.31
ገና ዘከራኽር
Scientists are not sure exactly how big Rikisaurus grew, because only one skull has been found.1

ሓቅታት ካበይ ይመጹ

  1. PBDB Taxon (paleobiodb.org)
  2. Moanasaurus (Wikipedia) (Wikipedia)
  3. Rikisaurus 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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ካብ ተመሳሳሊ ጉጅለ ተወሳኺ: ሞዛሰራት

MosasaurusሞዛሰራትPrognathodonሞዛሰራትTylosaurusሞዛሰራትPlatecarpusሞዛሰራትClidastesሞዛሰራትGlobidensሞዛሰራት

ካብ ተመሳሳሊ ግዜ እውን: ዳሕራይ ክሬታሸስ

TyrannosaurusታይራኖሰራትTriceratopsቀርኒ ዘለዎም ዳይኖሰራትVelociraptorራፕተራትSpinosaurusስፓይኖሰራትAnkylosaurusዕጡቓት ዳይኖሰራትParasaurolophusመንቑር ደርሆ ማይ
ንሬክስ መግቦናይ ዓበይቲ ሳንዱቕ ውህብቶ