THE PREHISTORIC A–Z
Explore the letter X
A research index of dinosaur genus names, including names whose status has changed.
1,888 names catalogued from Wikipedia’s genus list on 11 October 2026. Inclusion does not establish that a name is a valid dinosaur genus. Historical or disputed names are marked for review. Names without a field note link go to the source overview.
- Xenoceratops ↗Source index entry
- Xenoposeidon ↗Source index entry
- Xenotarsosaurus ↗Source index entry
- Xenovenator ↗Source index entry
- Xiangyunloong ↗Source index entry
- Xianshanosaurus ↗Source index entry
- Xiaosaurus ↗Source index entry
- Xiaotingia ↗Source index entry
- Xinghesaurus ↗Historical / disputed: review source
- Xingtianosaurus ↗Source index entry
- Xingxiulong ↗Source index entry
- Xinjiangovenator ↗Source index entry
- Xinjiangtitan ↗Source index entry
- Xiongguanlong ↗Source index entry
- Xixianykus ↗Source index entry
- Xixiasaurus ↗Source index entry
- Xixiposaurus ↗Source index entry
- Xiyunykus ↗Source index entry
- Xuanhanosaurus ↗Source index entry
- Xuanhuaceratops ↗Source index entry
- Xuanhuasaurus ↗Historical / disputed: review source
- Xunmenglong ↗Source index entry
- Xuwulong ↗Source index entry