Mammal
Josephoartigasia
Josephoartigasia monesi was a giant rodent with a substantial skull and large incisors.
Josephoartigasia monesi was a giant rodent with a substantial skull and large incisors. It belonged to a South American rodent lineage, not to the beavers.
Three stages. One companion.
Game artwork


AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.
Josephoartigasia at a glance
- Diet
- Herbivore
- Its feeding anatomy is interpreted as adapted to plant food.
- When it lived
- Pliocene–Pleistocene
- Group
- Dinomyidae
- Dinomyids
Beyond the game
The real Josephoartigasia
Josephoartigasia monesi was a giant rodent with a substantial skull and large incisors. It belonged to a South American rodent lineage, not to the beavers.
The substantial skull and incisors are more directly documented than its complete body. Estimates of body size depend on models and comparisons with other rodents.
Fossil discoveries
Selected fossil records · present-day map
Map references
Map: Natural Earth, public domain. Fossil records: Paleobiology Database and linked collections and publications.Sources & text credits
Explore the references behind this profile.
- Rinderknecht and Blanco 2008 — The largest fossil rodent
- Millien 2008 — The largest among the smallest: the body mass of the giant rodent Josephoartigasia monesi
Original English Dinosgacha educational summaries informed by the linked scientific and museum references; source publications retain their own rights.