Patagotitan mayorum

Overview

Patagotitan mayorum is a giant sauropod dinosaur known from Chubut in present-day Argentina. Its overall form, with a long neck and tail and four legs, was studied by bringing together bones from several specimens. This reveals a large body through multiple fossils.^[1]

Key facts

The whole-body skeletal diagram in the 2017 paper combines several specimens with reconstructions of missing parts. Scattered bones come together to reveal the organization of a long body.^[1]

Time and place

Late Albian material from the later Early Cretaceous of Chubut, present-day Argentina, has been studied. The entire Cretaceous spanned approximately 140–66 million years ago. This large sauropod can be compared within its locality and stratigraphic setting.^[1][2]

The time range describes source context, not the complete duration of this species.

Size, form and skeleton

The published composite skeleton extends from a long neck through the trunk and four limbs to a long tail. Several specimens contribute different body regions. It combines the overall connections with bones preserved in each part.^[1]

The Western Australian Museum presents Patagotitan as approximately 31–37 m long. Because this giant dinosaur is reconstructed from bones of several individuals, its length varies with the reconstruction method.^[3]

Habitat and reproduction

Into which regions can a huge dinosaur’s body be divided for examination? The long neck, trunk, limbs, and tail can be compared separately and reconnected. This research expands observation from small bone fragments to the whole body.^[1]

Fossil discovery

In 2017, Carballido and colleagues described a new giant titanosaur. The paper discussed the evolution of sauropod body size alongside the composite skeleton of Patagotitan. Discovery of new fossils thus led to comparisons among giant dinosaurs.^[1]

References

1. Carballido et al. (2017) — Patagotitan, a giant titanosaur
2. International Commission on Stratigraphy (2024) — Geological time chart
3. Western Australian Museum — Patagotitan mayorum
4. Currie et al.2018 — Rediscovery of Nemegt sauropod localities
5. Nowiński1971 — Nemegtosaurus mongoliensis from the Late Cretaceous of Mongolia

Research questions

How can bones from several specimens connect into one body arrangement? Their types, positions in the body, and overlapping known regions must be compared. Patagotitan raises questions about understanding a large whole body through several sources of evidence.^[1]

Observation

Move your gaze from the long neck to the trunk and four limbs. Following the long tail behind helps explain how several bone records form one body arrangement.^[1]