ካርድ ዳይኖሰር ቁ. 1314 ካብ 2 027

Ophthalmosaurus

ትርጉም ስሙ: “eye lizard”1

ይበልዕ ነበረ: ስጋኢክቲዮሰራትመጀመርታ ጁራሲክ ክሳብ መጀመርታ ክሬታሸስብቴክኒክ ዳይኖሰር ኣይኮነን

Ophthalmosaurus was a sleek, fast-swimming marine reptile with enormous eyes, almost as big as dinner plates. It lived in the warm seas of the Jurassic period and hunted small fish and squid. Even though it looked like a dolphin, it was actually an ichthyosaur, not a dinosaur.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 201 ክሳብ 133 ሚልዮን ዓመት2

መጀመርታ ጁራሲክ ክሳብ መጀመርታ ክሬታሸስ

ፎሲላት ዝተረኽቡሉ

Fossils found in the United Kingdom, Argentina, the United States, Russia, France, and Greenland, including the Oxford Clay in England and the Sundance Formation in the USA.2 1

ንውሓት

4 m (13 ft)1

ክብደት

930 kg ክሳብ 950 kg (2,100 ክሳብ 2,100 lb)1

ዝለዓለ ቅልጣፈ

ኣስታት 45 ኪ.ሜ/ሰ (28 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 48 ኣኽላባት ዝኸብድ

ከም 4 ኣኽላባት ካብ ኣፍንጫ ክሳብ ጭራ ዝነውሕከም 22 ባናና ተሰሪዑ ዝነውሕከም 190 ሓብሓብ ዝኸብድከም 50 ቆልዑ መዋእለ ህጻናት ዝኸብድከም 30 ተመሃሮ ዝኸብድከም 2 ጻዕዳ ድባት ዝኸብድንውሓት ዓቢ መሕምበሲ (50 ሜ) ኣብ 4 ካልኢት ክሕምብሶ ይኽእል ነበረ

ምሳኻ ክነጻጸር Ophthalmosaurus 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)

Ophthalmosaurus ኣስታት 45 ኪ.ሜ/ሰ (28 mph)

ብጉያ ዝኸይድ ፈረስ ኣስታት 65 ኪ.ሜ/ሰ (40 mph)

ቺታ ኣስታት 100 ኪ.ሜ/ሰ (62 mph)

ዘደንቑ ነገራት

ደስ ዝብሉ ሓቅታት

Ophthalmosaurus had eyes that measured about 22 to 23 centimetres (8.7 to 9.1 inches) across, which is bigger than a human head.1

It could dive to depths of 600 metres (2,000 feet) or more, reaching the twilight zone of the ocean, and stay underwater for about 20 minutes.1

Its tail ended in a two-lobed fin, with the lower half supported by the backbone and the upper half made only of soft tissue, helping it swim fast.1

Ophthalmosaurus had short, rounded limbs, with the front ones bigger than the back ones, which it used for steering rather than paddling.1

Fossils show it lived in shallow seas, like the Oxford Clay in England, which was only about 50 metres (160 feet) deep at the time.1

Some scientists think Ophthalmosaurus could swim at about 2 metres per second (6.6 feet per second) when chasing prey.1

ብAI ዝተሰርሐ ስእሊ ናይ Ophthalmosaurus — ብAI ዝተሰርሐ ስእሊ፣ Ophthalmosaurus 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: Ophthalmosaurus was a dinosaur that lived in the water.

ሓቂ: Ophthalmosaurus was an ichthyosaur, a marine reptile, not a dinosaur. Ichthyosaurs were a different group of reptiles that lived in the oceans.1

ንክኢላታት ዳይኖሰር

ሳይንሳዊ ስም: Ophthalmosaurus
ዝሰመዮ: Seeley 18742
ጉጅለ: ኢክቲዮሰራት
ስድራ / ክላድ: Ophthalmosauridae2
ምድባ: Ichthyosauria > Ichthyosauromorpha2
ዕድመ እቶም ኣኻውሕ: 201 ክሳብ 133 ሚልዮን ዓመት (Hettangian / Valanginian)2
ናይ ኣኻውሕ ንብርብራት: Oxford Clay, Sundance, Vaca Muerta2
ሃገራት: ዓባይ ብሪጣንያ, ኣርጀንቲና, ኣመሪካ, ሩስያ, ፈረንሳ, ግሪንላንድ2
መዛግብቲ ፎሲል: 27 ኣብ The Paleobiology Database2
ብኻልእ ስም: Ancanamunia, Yasykovia (ዝኣረጉ ኣስማት ሕጂ ከም ሓደ እንስሳ ይቑጸሩ)2
ርኽበት: Ophthalmosaurus was first described by Harry Seeley in 1874, based on fossils from the Oxford Clay in England. He focused on the shape of the collarbone bones.1 2
ገና ዘከራኽር: Scientists still debate whether some species, like Ophthalmosaurus natans from North America, are really separate species or just close relatives.1