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Dinosaur Names that Start with “X”

Check out the alphabetical list of dinosaur names beginning with the letter “X”. We’ll look at dinosaur pictures and discuss what their names mean, as well as learn more about dinosaur facts.

Dinosaurs with names that begin with the letter “X”

Xenoposeidon

Xenoposeidon dinosaur

Xenoposeidon is a mystery neozauropoda (most likely a rebbachisauride) known only from one completed circle found in Early Cretaceous strata in southern England.

Xenoposeidon is Greek for “unknown / alien Poseidon” (the name of a Greek god appears in reference to another sauropod – Sauroposeidon ). The genre epithet alludes to the vertebral arch structure and denotes “forward inclining” (from Latin pronus ).

Xenotarsosaurus

Xenotarsosaurus dinosaur

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The Late Cretaceous Abelisauroid Xenotarsosaurus lived in the present-day Argentine region of Chubut.

The name Xenotarsosaurus is derived from Greek and means “strange-walked lizard” (xenos means “strange,” tarsos means “walk,” and sauros means “lizard”) and refers to the odd structure of the foot bones. The genre name bonapartei was inspired by Argentine palaeontologist Jose Bonaparte.

Xianshanosaurus

Xianshanosaurus dinosaur

The long-necked dinosaur Xianshanosaurus was discovered in eastern China.

The generic name is a combination of Xianshan (Mount Xian), where the holotype was discovered, and the Greek sauros (lizard, lizard). As a result, the name can be interpreted as “Xian lizard.” The genre epithet, in turn, relates to the town of Shijiagou, where the holotype was discovered.

Xiaosaurus

Xiaosaurus dinosaur


Xiaosaurus is a tiny, bird-flock dinosaur that lived in what is now China during the Middle Jurassic period. Xiaosaurus is known from a tiny number of bones, however it is hypothesised that Xiaosaurus was a small, two-legged herbivore with a small head and long hind limbs, possibly supplementing its vegetarian diet with small mammals.

Xiaosaurus is derived from the Chinese word xiao, which means “dawn,” and the Greek word sauros (“reptile”, “lizard”). The species name relates to the region where the bones were discovered, Dashanpu.

Xiaotingia

Xiaotingia dinosaur
Xiaotingia is a tiny theropod belonging to the Paraves group. Xiaotingia lived in what is now China during the late Jurassic period. It is extremely important for the study of the origins of birds.

The name Xiaotingia zhengi honours the Chinese palaeontologist Zheng Xiaoting, who donated to the Shandong Tianyu Museum of Nature, which has the holotype of this species.

Xingtianosaurus

Xingtianosaurus dinosaur

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Xingtianosaurus was a theropod of the Oviraptorosauria group that lived in today’s China during the early Cretaceous epoch. Rui Qiu and colleagues named Xingtianosaurus in 2019.

The name Xingtianosaurus is derived from Xingtian, a Chinese deity who resumed the fight after cutting off the head (a reference to the dinosaur’s headless holotype), and the Latin word sauros (“reptile”, “lizard”). The genre epithet ganqi refers to this Xingtan’s weapon.

Xingxiulong

Xingxiulong dinosaur
Xingxiulong is the ancestor of medium-sized sauropodomorphs. Xingxiulong were discovered in the Lufeng Formation in southern China (Yunnan Province). Xingxiulong is thought to be the representative of the Sauropodomorpha clade Massopoda.

The generic name Xingxiulong means “the dragon of Xingxiu” and refers to the Xingxiu Bridge in Lufeng County, which was built during the Ming Dynasty (1368-1644). The genre epithet chengi honours Professor Zhengwu Cheng (1931-2015), who spent his life researching biostratigraphy in Lufeng.

Xinjiangovenator

Xinjiangovenator dinosaur


Xinjiangovenator is a strange celurosaur that lived in present-day China during the early Cretaceous period.

The name Xinjiangovenator means “the hunter of Xinjiang,” and the genre epithet relates to the animal’s diminutive stature, because paravus means “as much as small” in Latin.

Xinjiangtitan

Xinjiangtitan dinosaur
Xinjiangtitan shanshanesis is a Middle Jurassic sauropod closely related to Mamenchizaurus, which has also been discovered in China.

The name Xinjiangtitan is derived from the Xinjiang Autonomous Region and Shanshan County where it was discovered, as well as Greek, titan, giant in Greek mythology, and a commonly used name for sauropods.

Xiongguanlong

Xiongguanlong dinosaur

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Xiongguanlong is a medium-sized tyrannosauroid that lived in what is now China during the end of the Early Cretaceous epoch. Li and his colleagues described it in 2010.

The generic name is derived from a combination of two words: Mandarin Xiong Guan (Grand Pass), the historical name of Jiayuguan, and Chinese long, which means dragon. The genre name is derived from the Mandarin bai mo (white spirit), which is referenced in the area’s topography.

Xixianykus

Xixianykus dinosaur
Xixianykus is a genus of small theropods from the Alvarezsauridae family that lived in today’s China during the late Cretaceous period.

The term Xixianykus is derived from the Xixia district and the Greek word onyx (“claw”). The genre name pays homage to Chinese palaeontologist Zhang Wentang.

Xixiasaurus

Xixiasaurus dinosaur


Xixiasaurus is a tiny theropod from the Troodontid family discovered in what is now China during the Late Cretaceous period. Byronosaurus from Mongolia appears to be Xixiasaurus’ closest relative in form and size. A team of palaeontologists led by Junchang Lü named and characterised Xixiasaurus in 2010.

The name Xixiasaurus is derived from the Xixia area in China, and the species epithet is derived from Henan Province.

Read also: A-Z list of Dinosaur Names and Pictures

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Written by James

James has always been intrigued by dinosaurs, the universe, technology, and animals. With a Bachelor of Computer Science and years of writing expertise, he joined World Amazing Facts in 2021 as a staff writer.

Our team at World Amazing Facts is committed to verifying the accuracy of our content. It's possible that we'll get something wrong, or that our knowledge may become obsolete. Please let us know if you see any errors in the information provided.

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