A fossil has been identified as the first dinosaur found in Antarctica, marking a significant paleontological discovery that places Antarctica within the Cretaceous dinosaur record.

The find suggests Antarctica once hosted a forested, habitable landscape with large herbivores about 82 million years ago, during the Late Cretaceous.

The discovery highlights the challenges of Antarctic palaeontology, where ice and rock conceal much of the prehistoric record, yet such finds help integrate Antarctica into broader Cretaceous ecosystems.

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The Antarctic Titanosaur is estimated to be about 7 meters (23 feet) long, suggesting it could have been a juvenile or a relatively small adult within its group.

Titanosaurs are a diverse group of long-necked, four-legged, plant-eating dinosaurs, including many species and some individuals that reached tremendous sizes.

Paleontologists identify the fossil as a Titanosaur tail bone, aligning it with a lineage known for some of Earth's largest dinosaurs.

A paleontologist from the Natural History Museum, Prof. Paul Barrett, recognized distinctive vertebral features and a ball-and-socket joint arrangement that confirmed the Titanosaur identification.

The specimen was discovered in 1985 on James Ross Island and originally cataloged as a vertebra of a large reptile, initially thought to be from a marine reptile.

The James Ross Island find was later reinterpreted as a dinosaur fossil rather than a marine reptile, refining its paleontological significance.