Dinosauria›Reptilia
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Alectrosaurus Alectrosaurus olseni (Gilmore 1933)
/əˌlɛktroʊˈsɔːrəs/
Late Cretaceous (Campanian) · 83.6–72.2 Mya
Key Statistics
Diet
carnivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
solitary
Where It Was Found
Country
China
Region
Nei Mongol
Formation
Iren Dabasu
Dig sites
2
distinct collections
Overview
Alectrosaurus olseni is a theropod dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a carnivore. It is recorded as ground-dwelling and solitary. Fossils have been recovered from Nei Mongol, China. It was named by (Gilmore 1933). The species is represented by 2 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~8%
confidence from occurrence count
Based on 2 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Alectrosaurus olseni sits in deep time
Alectrosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Alectrosaurus olseni's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.