Genus · Spinosauridae · Cretaceous
Spinosaurus
Named by Stromer 1915
Spinosaurus lived 100.5–93.9 million years ago, during the Cenomanian stage of the Late Cretaceous. The Paleobiology Database lists 44 fossil records for it from 6 countries (Morocco, Egypt and Niger and others) — the 22nd most of the 99 genera on this site.
Where it sits in time
Key facts from the records
- Its records are spread over at least 10 formations; the largest share, 11%, is from the Gara Sbaa Formation.
- It is one of the more widespread genera here: records from 6 countries, 5th of 99.
- Carcharodontosaurus appears in 57% of the collections that hold Spinosaurus; Baryonyx in 3%.
- Its stage range spans about 6.6 million years (78th longest of 99); it is the 9th best-recorded of the 32 theropods here.
2 accepted species
| Species | Named by | Records |
|---|---|---|
| Spinosaurus aegyptiacus | Stromer 1915 | 26 |
| Spinosaurus mirabilis | Sereno et al. 2026 | 2 |
Where it was found
44 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Drâa-Tafilalet | 21 | 48% |
| Matruh | 3 | 7% |
| Agadez | 2 | 5% |
| Médenine | 2 | 5% |
| Al Wadi al Jadid | 2 | 5% |
| Tataouine | 2 | 5% |
| Illizi | 2 | 5% |
| Béchar | 2 | 5% |
| Country | Records | Share |
|---|---|---|
| Morocco | 22 | 50% |
| Egypt | 6 | 14% |
| Niger | 5 | 11% |
| Tunisia | 5 | 11% |
| Algeria | 5 | 11% |
| Kenya | 1 | 2% |
Records by stage
Well-dated records, by the stage of their mid-point age.
Other theropods of its time
Same group, overlapping stage range, not found in the same collections.
| Genus | Age | Country | Records |
|---|---|---|---|
| Alectrosaurus | 100.5–83.6 Ma | Uzbekistan, Kazakhstan | 19 |
Data: PBDB taxon 38598 · method