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
Yabayeho ryari?
Yanganaga ite?
Yari ndende ite?
ndende nk'injangwe 2 zo mu rugo zikurikiranye๐ndende nk'imineke 6 ikurikiranye๐yashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 14Xenodens yanganaga ite ugereranyije NAWE?
Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.
Yihutaga ite?
Utuntu dushimishije
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

Ibibazo bibazwa cyane kuri Xenodens
?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
Gusenya ibinyoma
Ibivugwa: Xenodens was a dinosaur.
Ukuri: Xenodens was a mosasaur, a type of marine lizard that lived in the ocean. Mosasaurs are not dinosaurs.1
Ku bazobereye muri dinozore
- Izina rya siyansi
- Xenodens
- Yiswe na
- Longrich et al. 20212
- Itsinda
- Mozazore
- Umuryango / ishami
- Mosasauridae2
- Ishyirwa mu byiciro
- Mosasauroidea2
- Imyaka y'amabuye
- imyaka miliyoni 72 kugeza 66 (Maastrichtian)2
- Inzego z'amabuye
- Couche III2
- Ibihugu
- Maroke2
- Ibisigazwa byanditswe
- 1 muri The Paleobiology Database2
- Ivumburwa
- 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
- Biracyagibwaho impaka
- Some scientists still debate whether Xenodens is a real species or a fake fossil, though CT scans support its authenticity.1
Aho amakuru yakuwe
- Xenodens (en.wikipedia.org)
- Xenodens in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.
Buri kintu kiri kuri uru rupapuro gifite nimero yerekana aho cyakuwe. Niba hari icyo twibeshye, tubabarire, turi abakunzi ba dinozore, ntituri ikinyamakuru cya siyansi. Tubwire kuri [email protected] tuzagikosora.
Rex arashonje! Dino Wiki ni umushinga wa papa umwe yakoreye umuhungu we ukunda dinozore, ni ubuntu, nta matangazo kandi nta bigukurikirana. Abantu bakuru bashobora guha Rex akantu ko kurya kugira ngo Dino Wiki ikomeze kuboneka kuri interineti.Gaburira Rex