Dinokaart nr. 1314 van 2 027

Ophthalmosaurus

Naam beteken: “eye lizard”1

Het geëet: VleisIgtiosourusseVroeë Jura tot Vroeë KrytTegnies nie 'n dinosourus nie

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

Prettige feit: hierdie seereptiel het geswem terwyl dinosourusse op land geloop het. Almal noem hulle dino's, maar hulle was 'n ander tak van die reptiele.

Het geleef

201 tot 133 miljoen jaar gelede2

Vroeë Jura tot Vroeë Kryt

Fossiele gevind in

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

Lengte

4 m (13 ft)1

Gewig

930 kg tot 950 kg (2 100 tot 2 100 lb)1

Topspoed

omtrent 45 km/h (28 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

Hoe swaar was dit?

so swaar soos 48 honde

so lank soos 4 honde van neus tot stertso lank soos 22 piesangs punt aan puntso swaar soos 190 waatlemoeneso swaar soos 50 kleuterskoolkindersso swaar soos 30 skoolkindersso swaar soos 2 ysberekon die lengte van 'n groot swembad (50 m) in 4 sekondes swem

Hoe groot was Ophthalmosaurus vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Ophthalmosaurus omtrent 45 km/h (28 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Ophthalmosaurus — 'n KI-prent van hoe Ophthalmosaurus dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

Mite-breker

Mite: Ophthalmosaurus was a dinosaur that lived in the water.

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

Vir dino-kenners

Wetenskaplike naam: Ophthalmosaurus
Benoem deur: Seeley 18742
Groep: Igtiosourusse
Familie / klade: Ophthalmosauridae2
Klassifikasie: Ichthyosauria > Ichthyosauromorpha2
Ouderdom van die rotse: 201 tot 133 miljoen jaar (Hettangian / Valanginian)2
Rotsformasies: Oxford Clay, Sundance, Vaca Muerta2
Lande: Verenigde Koninkryk, Argentinië, VSA, Rusland, Frankryk, Groenland2
Fossielrekords: 27 in The Paleobiology Database2
Ook bekend as: Ancanamunia, Yasykovia (ouer name tel nou as dieselfde dier)2
Ontdekking: 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
Steeds omstrede: Scientists still debate whether some species, like Ophthalmosaurus natans from North America, are really separate species or just close relatives.1

Waar die feite vandaan kom

Ophthalmosaurus (en.wikipedia.org)
Ophthalmosaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dino-aanhangers, nie 'n wetenskapjoernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

Rex is honger! Dino Wiki is 'n pa se projek vir sy seun wat mal is oor dino's, gratis met geen advertensies en geen spoorsnyers nie. Grootmense kan vir Rex 'n peuselhappie gee om te help om dit aanlyn te hou.Voer Rex