Genus · Theropods · Cretaceous
Alectrosaurus
Named by Gilmore 1933
Alectrosaurus lived 100.5–83.6 million years ago, during the Cenomanian to Santonian stages of the Late Cretaceous. The Paleobiology Database lists 19 fossil records for it from 4 countries (Uzbekistan, Kazakhstan and China and others) — the 65th 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 8 formations; the largest share, 53%, is from the Bissekty Formation.
- It is one of the more widespread genera here: records from 4 countries, 11th of 99.
- Velociraptor appears in 6% of the collections that hold Alectrosaurus; Gallimimus in 6%.
- Its stage range spans about 16.9 million years (33rd longest of 99); it is the 23rd best-recorded of the 32 theropods here.
1 accepted species
Alectrosaurus has a single accepted species in PBDB.
| Species | Named by | Records |
|---|---|---|
| Alectrosaurus olseni | Gilmore 1933 | 2 |
Where it was found
19 records with coordinates.
Found alongside
Rock formations
States & provinces
| Region | Records | Share |
|---|---|---|
| Navoi | 11 | 58% |
| Nei Mongol | 2 | 11% |
| Karakalpakstan | 2 | 11% |
| Qyzylorda | 2 | 11% |
| Turkistan | 1 | 5% |
| Sogd | 1 | 5% |
| Country | Records | Share |
|---|---|---|
| Uzbekistan | 13 | 68% |
| Kazakhstan | 3 | 16% |
| China | 2 | 11% |
| Tajikistan | 1 | 5% |
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 |
|---|---|---|---|
| Carcharodontosaurus | 121.4–93.9 Ma | Algeria, Morocco | 44 |
| Spinosaurus | 100.5–93.9 Ma | Morocco, Egypt | 44 |
Data: PBDB taxon 38610 · method