Dinokaart nr. 0706 van 2 027

Gengasaurus

Naam beteken: “Genga lizard”1

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

Gengasaurus was a fast-swimming marine reptile that lived in the warm Jurassic seas. It looked a bit like a dolphin but was actually an ichthyosaur, not a dinosaur. It had a long snout full of sharp teeth for catching fish and squid.3 2

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

155 tot 143 miljoen jaar gelede3

Laat Jura tot Vroeë Kryt

Fossiele gevind in

Camponocecchio, Genga, Marche, Italy3 1

Topspoed

omtrent 46 km/h (29 mph)

Swem, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

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)

Gengasaurus omtrent 46 km/h (29 mph)

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

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

cool goed

Prettige feite

Gengasaurus was named in 2017, but the fossil was actually discovered in 1976. It was called the 'Genga ichthyosaur' for many years before getting its official name.1

Two shark teeth from the order Hexanchiformes were found with the Gengasaurus fossil. Scientists think the sharks may have been scavenging on the dead ichthyosaur.2

Gengasaurus belongs to a group called Ophthalmosauridae, which means 'eye lizards'. These ichthyosaurs had very large eyes to see in dim water.3 2

The fossil was found in the Calcari ad aptici e Saccocoma Formation in Italy, which was once part of the warm Western Tethys Ocean.3 2

Gengasaurus lived about 152 million years ago, during the Late Jurassic period.1

KI-prent van Gengasaurus — 'n KI-prent van hoe Gengasaurus 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.

Vir dino-kenners

Wetenskaplike naam: Gengasaurus
Benoem deur: Paparella et al. 20173
Groep: Igtiosourusse
Familie / klade: Ophthalmosauridae3
Klassifikasie: Ichthyosauria > Ichthyosauromorpha3
Ouderdom van die rotse: 155 tot 143 miljoen jaar (Kimmeridgian / Tithonian)3
Rotsformasies: Calcari ad aptici e Saccocoma3
Lande: Italië3
Fossielrekords: 1 in The Paleobiology Database3
Ontdekking: The nearly complete skeleton was discovered in 1976 at Camponocecchio, Italy. It was first described in 1980 and 2000 as the 'Genga ichthyosaur', and finally named Gengasaurus nicosiai by Paparella and colleagues in a paper published in 2017.1 2
Steeds omstrede: Scientists are not sure exactly where Gengasaurus fits in the ichthyosaur family tree. It shares features with both northern and southern hemisphere ophthalmosaurids, suggesting it may be a link between different groups.2

Waar die feite vandaan kom

Gengasaurus (en.wikipedia.org)
The first ophthalmosaurid ichthyosaur from the Upper Jurassic of the Umbrian, Marchean Apennines (Marche, Central Italy) (cambridge.org)
Gengasaurus in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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