Xenodens
Xenodens was a mosasaur, a giant marine lizard that lived in the sea during the time of dinosaurs. It had a mouth full of flat, blade-like teeth that worked like a saw, just like a shark or a piranha. This helped it slice through fish, squid, and even other sea creatures.1
Noiz bizi izan zen?
Zein handia zen?
Zein luzea zen?
2 etxeko katu bezain luze, sudurretik buztanera๐bata bestearen atzean jarritako 6 banana bezain luze๐igerileku handi baten luzera (50 m) 14 segundotan egin zezakeen igerianZein handia zen Xenodens ZUREKIN alderatuta?
Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.
Zein azkarra zen?
Datu dibertigarriak
Xenodens means 'strange tooth' in Greek and Latin, and its species name calminechari means 'like a saw' in Arabic.1
Its teeth were short, flattened, and blade-like, forming a saw-like edge along the jaw. No other land or sea reptile had teeth like this.1
Xenodens lived about 72 to 66 million years ago, near the end of the Age of Dinosaurs.2
Scientists first described Xenodens in 2021 from two upper jaw bones found in a phosphate mine in Morocco.1
Some scientists thought the fossil might be a fake, but CT scans in 2025 showed the teeth were real and naturally attached.1
Xenodens was small for a mosasaur, only about 1 meter (3.3 feet) long. Many other mosasaurs were much bigger.1

Xenodens: gehien egindako galderak
?Was Xenodens a dinosaur?
No, Xenodens was a mosasaur, a marine lizard that lived in the sea during the time of dinosaurs.1
?How big was Xenodens?
About 1 meter (3.3 feet) long, which is small for a mosasaur.1
?What did Xenodens eat?
It likely ate fish, squid, crustaceans, and scavenged dead marine reptiles, using its saw-like teeth to slice through food.1
?Why did Xenodens have strange teeth?
Its short, flattened, blade-like teeth formed a saw-like edge, similar to dogfish sharks and piranhas, for cutting prey.1
Mito-hauslea
Mitoa: Xenodens was a dinosaur.
Egia: Xenodens was a mosasaur, a type of marine lizard that lived in the ocean. Mosasaurs are not dinosaurs.1
Dino adituentzat
- Izen zientifikoa
- Xenodens
- Izendatzailea:
- Longrich et al. 20212
- Taldea
- Mosasauroak
- Familia / klada
- Mosasauridae2
- Sailkapena
- Mosasauroidea2
- Arroken adina
- 72 eta 66 milioi urte artean (Maastrichtian)2
- Arroka-formazioak
- Couche III2
- Herrialdeak
- Maroko2
- Fosil-erregistroak
- 1 The Paleobiology Database datu-basean2
- Aurkikuntza
- Xenodens was named in 2021 by Nick Longrich and colleagues based on a left upper jaw bone bought from a local farmer in Morocco. The fossil came from the Sidi Chennane phosphate mine.1
- Oraindik eztabaidagai
- Some scientists still debate whether Xenodens is a real species or a fake fossil, though CT scans support its authenticity.1
Datuak nondik datozen
- Xenodens (en.wikipedia.org)
- Xenodens in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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