# Argentinosaurus (Argentinosaurus huinculensis) — DinoLand

> Field Journal — free dinosaur encyclopedia: 33 species with photos and video, catalog, ancient world maps (Triassic, Jurassic, Cretaceous, Gondwana), quiz, and paleontology glossary.

### id=22: Argentinosaurus (Argentinosaurus huinculensis)

- URL: https://www.dinoland.ai/species.html?lang=en&id=22
- Diet: Herbivore
- Era: Cretaceous
- Period: 96–92 million years ago
- Length: 35–39 m
- Weight: ≈65–80 t
- Height: 21 m
- Speed: ≈7 km/h
- Habitat: Seasonally humid plains and ribbon forests
- Region: Argentina (Patagonia)
- Discovered: 1993, Rodolfo A. Coria and José F. Bonaparte

Fact: “Among the largest terrestrial animals ever supported by columnar limbs.”

Description: Argentinosaurus is a titanosaurian sauropod whose fragmentary but colossal vertebrae and limb elements imply body lengths and masses rivaling modern airliners. Like other titanosaurs it likely employed wide-gauge stance and pneumatized vertebrae to lighten the skeleton. Hatchlings began dog-sized before undergoing decades of logarithmic growth recorded in bone laminations.

Features:
  - Length estimates approach ~39 m in maximal reconstructions
  - Mass estimates exceed ~70–80 metric tons in some models
  - Melon-sized eggs imply precocial neonates emerging from nests

Related genera: Patagotitan, Notocolossus, Dreadnoughtus


## Citation

Field Journal — Dinosaur Encyclopedia — https://www.dinoland.ai

Web: https://www.dinoland.ai/species.html?lang=en&id=22
Index: https://www.dinoland.ai/llms-en.txt