Ophthalmosaurus
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
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4 txakur bezain luze, sudurretik buztanera๐bata bestearen atzean jarritako 22 banana bezain luze๐190 angurria bezain astun๐งธhaur-eskolako 50 haur bezain astun๐30 eskolaume bezain astun๐ปโโ๏ธ2 hartz zuri bezain astun๐igerileku handi baten luzera (50 m) 4 segundotan egin zezakeen igerianZein handia zen Ophthalmosaurus ZUREKIN alderatuta?
Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.
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Datu dibertigarriak
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

Mito-hauslea
Mitoa: Ophthalmosaurus was a dinosaur that lived in the water.
Egia: Ophthalmosaurus was an ichthyosaur, a marine reptile, not a dinosaur. Ichthyosaurs were a different group of reptiles that lived in the oceans.1
Dino adituentzat
- Izen zientifikoa
- Ophthalmosaurus
- Izendatzailea:
- Seeley 18742
- Taldea
- Iktiosauroak
- Familia / klada
- Ophthalmosauridae2
- Sailkapena
- Ichthyosauria > Ichthyosauromorpha2
- Arroken adina
- 201 eta 133 milioi urte artean (Hettangian / Valanginian)2
- Arroka-formazioak
- Oxford Clay, Sundance, Vaca Muerta2
- Herrialdeak
- Erresuma Batua, Argentina, AEB, Errusia, Frantzia, Groenlandia2
- Fosil-erregistroak
- 27 The Paleobiology Database datu-basean2
- Honela ere ezaguna
- Ancanamunia, Yasykovia (orain animalia bertzat hartzen diren izen zaharragoak)2
- Aurkikuntza
- 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.12
- Oraindik eztabaidagai
- Scientists still debate whether some species, like Ophthalmosaurus natans from North America, are really separate species or just close relatives.1
Datuak nondik datozen
- Ophthalmosaurus (en.wikipedia.org)
- Ophthalmosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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