Dinosaur
Alvarezsaurus
Its name honors the Argentine doctor and historian Gregorio Álvarez.
Alvarezsaurus was small even compared to many other two-legged dinosaurs.
Three stages. One companion.
Game artwork
AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.
Alvarezsaurus at a glance
- Diet
- Insectivore (proposed)
- Insect-eating is a hypothesis for this group. Its specialized arms have been linked to breaking into insect shelters; this behavior has not been observed directly.
- When it lived
- Cretaceous
- Group
- Alvarezsauridae
- Alvarezsaurids
- Fossil locations
- Argentina
- Places where fossils have been found
Beyond the game
The real Alvarezsaurus
It was very small, about one meter and about three kilos. José Bonaparte described it in 1991 from remains of the Bajo de la Carpa Formation.
Its name honors the Argentine doctor and historian Gregorio Álvarez. Scientific names do not always describe claws, teeth or size; some also preserve a human story.
This grouping describes evolutionary relationships. Its members share ancestors; they do not form a chain in which one must turn into another.
Fossil discoveries
Selected fossil records · present-day map
Map references
Map: Natural Earth, public domain. Fossil records: linked collections and publications.Sources & text credits
Explore the references behind this profile.
- Alvarezsaurus calvoi
Wikipedia contributors · Spanish source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Alvarezsaurus
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Alvarezsauridae
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Living birds
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
Educational text adapted in English from the existing Wikipedia-backed Dinosgacha catalogue and linked articles by Wikipedia contributors.
Existing English translations have been selected and arranged for this encyclopedia. Repeated period and diet text is omitted where those fields already carry it. Unknown facts remain unfilled; unreviewed geological age phrases are omitted and period labels replace numerical ages.
The adapted educational text is available under CC BY-SA 4.0. This text license does not apply to the game illustrations.