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Cretornis

Naam beteken: “chalk bird”1

Het geëet: VisVlieënde reptieleLaat KrytTegnies nie 'n dinosourus nie

Cretornis was a flying reptile that lived about 92 million years ago. It had a wingspan as wide as a bicycle is long and probably ate fish. Its fossils were found in the Czech Republic.1 3

Prettige feit: pterosourusse het oor die dinosourusse gevlieg, maar hulle was hul neefs, nie self dinosourusse nie.

Het geleef

94 tot 90 miljoen jaar gelede3

Laat Kryt

Fossiele gevind in

Zářecká Lhota near Choceň, Czech Republic3 1

Vlerkspan

1,5 tot 1,6 m (4,9 tot 5,2 ft)1 2

Topspoed

omtrent 43 km/h (27 mph)

Vlieënd, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe wyd was sy vlerke?

so lank soos 3 huiskatte van neus tot stertkon in 8,8 sekondes oor 'n hele sokkerveld vlieg

Hoe groot was Cretornis 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)

Cretornis omtrent 43 km/h (27 mph)

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

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

cool goed

Prettige feite

Cretornis was first thought to be a bird, not a pterosaur. The scientist who named it, Antonín Frič, called it a 'chalk bird' because he thought it was a toothed bird like Ichthyornis.1

The fossils were found by a woman named Mrs. Tomková, who worked at a gambling table in Choceň. She told a local pharmacist, František Hlaváč, about the bones, and he collected them.1

Cretornis is the only pterosaur ever found in the Czech Republic. Its bones come from a sandstone quarry that was being used to get gravel for road repairs.1 2

The upper arm bone (humerus) of Cretornis is only 76 millimeters long, which is about the length of three fingers side by side.1

Scientists are not sure exactly what group of pterosaurs Cretornis belongs to. Some think it is an azhdarchoid, others think it is a nyctosaurid.1 2

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

julle het gevra

Mees gevraagde vrae oor Cretornis

?How big was Cretornis?

Its wingspan was about 1.5 to 1.6 metres (4.9 to 5.2 feet), which is as wide as a bicycle. Its upper arm bone was only 76 millimetres (3 inches) long.1 2

?What did Cretornis eat?

It probably ate fish, like many other pterosaurs that lived near the sea.1

?Is Cretornis a dinosaur?

No, Cretornis is a pterosaur, a flying reptile that lived during the time of dinosaurs, but it is not a dinosaur itself.1

Vir dino-kenners

Wetenskaplike naam: Cretornis
Benoem deur: Fritsch 18813
Groep: Vlieënde reptiele
Familie / klade: Azhdarchoidea3
Klassifikasie: Pterosauria > Pterodactyloidea3
Ouderdom van die rotse: 94 tot 90 miljoen jaar (Turonian)3
Rotsformasies: Jizera3
Lande: Tsjeggië3
Fossielrekords: 1 in The Paleobiology Database3
Ontdekking: Cretornis was named in 1881 by Czech paleontologist Antonín Frič. He first thought the bones were from a bird, but later scientists realized it was a pterosaur.1 3
Steeds omstrede: Scientists still debate whether Cretornis was an azhdarchoid pterosaur or a nyctosaurid. Its exact place in the pterosaur family tree is not settled.1 2

Waar die feite vandaan kom

Cretornis (en.wikipedia.org)
Cretornis hlavaci Frič, 1881 from the Upper Cretaceous of Czech Republic (Pterosauria, Azhdarchoidea) - ScienceDirect (sciencedirect.com)
Cretornis in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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