ካርድ ዳይኖሰር ቁ. 1158 ካብ 2 027

Megapterygius

ትርጉም ስሙ: “large wing”1

ይበልዕ ነበረ: ስጋሞዛሰራትዳሕራይ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Megapterygius was a huge marine lizard that swam in the seas around Japan 72 million years ago. It had enormous flippers that were longer than its head, and scientists think it even had a dorsal fin like a shark!1 2

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 ዓመት4

ዳሕራይ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

Wakayama Prefecture, Japan1

ንውሓት

6 m (20 ft)1

ክብደት

150 kg ክሳብ 450 kg (331 ክሳብ 992 lb)3

ዝለዓለ ቅልጣፈ

ኣስታት 38 ኪ.ሜ/ሰ (24 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 22 ኣኽላባት ዝኸብድ

ከም 6 ኣኽላባት ካብ ኣፍንጫ ክሳብ ጭራ ዝነውሕከም 33 ባናና ተሰሪዑ ዝነውሕከም 90 ሓብሓብ ዝኸብድከም 24 ቆልዑ መዋእለ ህጻናት ዝኸብድከም 14 ተመሃሮ ዝኸብድንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 4.7 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Megapterygius 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)

Megapterygius ኣስታት 38 ኪ.ሜ/ሰ (24 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Megapterygius had rear flippers that were even longer than its front flippers, a feature only seen in one other mosasaur, Tylosaurus.1

Its flippers were longer than its skull, which is unique among mosasaurs with paddle-like limbs.1

The shape of its backbone suggests it had a dorsal fin, like a dolphin or shark, which would have helped it turn quickly in the water.1 2

Its skull was slightly wide around the eye sockets, giving it binocular vision that helped it hunt prey. This is only the second mosasaur known to have this ability.1

The fossil was found in 2006 by Akihiro Misaki, who was actually looking for ammonite fossils when he spotted a vertebra.1 2

More than 100 shark teeth were found around the Megapterygius skeleton, suggesting that sharks scavenged its body after it died.1

Megapterygius is the most complete mosasaur skeleton ever found in Japan or the northwestern Pacific.2

ብAI ዝተሰርሐ ስእሊ ናይ Megapterygius — ብAI ዝተሰርሐ ስእሊ፣ Megapterygius 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 Megapterygius ብብዝሒ ዝሕተቱ ሕቶታት

?How big was Megapterygius?

Megapterygius was about 6 metres long, with a skull about 0.8 metres long. That is roughly the size of a large great white shark.1 2

?Did Megapterygius have a dorsal fin?

Scientists think it did. The shape of its backbone is like that of dolphins and porpoises, which have dorsal fins, and this would have helped it turn quickly in the water. It's the first mosasaur with evidence of a dorsal fin.1 2

?What did Megapterygius eat?

Scientists think it hunted large groups of small prey, like schools of fish. Its binocular vision and big flippers would have helped it catch them.1

?When did Megapterygius live?

Megapterygius lived about 72 million years ago, during the Late Cretaceous period, in the seas around Japan.1 2

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Megapterygius
ዝሰመዮ: Konishi et al. 20234
ጉጅለ: ሞዛሰራት
ስድራ / ክላድ: Mosasauridae4
ምድባ: Mosasauroidea4
ዕድመ እቶም ኣኻውሕ: 84 ክሳብ 66 ሚልዮን ዓመት (Campanian / Maastrichtian)4
ናይ ኣኻውሕ ንብርብራት: Toyajo4
ሃገራት: ጃፓን4
መዛግብቲ ፎሲል: 1 ኣብ The Paleobiology Database4
ርኽበት: The fossil was discovered in 2006 by Akihiro Misaki in Wakayama Prefecture, Japan. It was named Megapterygius wakayamaensis by Takuya Konishi and colleagues in 2023.1 2
ገና ዘከራኽር: Scientists are still debating how Megapterygius used its four large flippers and tail fin together for swimming, since no modern animal has a similar body shape.2