← All lineages
mixed diet
Guaibasauridae
Unknown range
Meet the giants
2 genera, ordered oldest to newest — the evolutionary line, not the alphabet.
| Genus | Period | Max weight | Height | Diet | Region |
|---|---|---|---|---|---|
| AgnosphitysGuaibasauridae | 237–227.3 MYA | Unknown | Unknown | Unknown | Unknown |
| GuaibasaurusGuaibasauridae | 227.3–205.7 MYA | Unknown | Unknown | Unknown | South America |
Weight and height are best estimates from published research, not exact measurements — sauropod mass in particular varies by method and specimen. Most genera below are newly classified and still awaiting full measurements.