Dinosauria › Reptilia › Theropoda › Alvarezsauridae
Alvarezsaurus
Alvarezsaurus calvoi Bonaparte 1991
Late Cretaceous (Santonian) · 85.7–83.6 Mya
Key Statistics
Diet
carnivore
Locomotion
bipedal
inferred from clade
Overview
Alvarezsaurus calvoi is a theropod dinosaur known from the Late Cretaceous, roughly 85.7–83.6 million years ago. It was a carnivore. It was named by Bonaparte 1991. The species is represented by 1 recorded occurrence in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~5%
fragmentary record
Confirmed
Inferred
Based on 1 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Alvarezsaurus sits in deep time
Alvarezsaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Alvarezsaurus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.