The first dinosaur bone ever found in Antarctica has been identified as a tail vertebra belonging to a Titanosaur, a large plant-eating dinosaur. The fossil was collected in 1985 on James Ross Island but remained unexamined in storage until now.
Dr. Mark Evans, collections manager at the British Antarctic Survey (BAS), recently discovered the fossil while cataloging specimens. "It's only when you start thinking 'what's in this drawer', that sometimes you come across something and you think, 'Ah, this looks interesting'," he stated.
The discovery was noted in a field notebook by geologist Dr. Mike Thomson, who collected the specimen. Alongside a sketch and the date December 9, 1985, Thomson had written "vertebra of large reptile," estimating its width at approximately 10 centimeters. At the time of its collection, the team likely believed it belonged to a marine reptile.
However, upon closer inspection, Evans recognized the bone's distinctly dinosaur-like features. The date of its discovery confirms it as the earliest dinosaur fossil found on the Antarctic continent.
Titanssaurs were a group of long-necked, long-tailed sauropod dinosaurs that lived during the Cretaceous period. Their fossils have been found on all continents, with Antarctica being the last to yield a dinosaur discovery. The continent's fossils provide crucial insights into the distribution and evolution of dinosaurs during a time when the landmasses were more connected and the climate was warmer.
Dr. Evans is now working with the BAS to analyze the fossil further and hopes to find more dinosaur remains in the extensive collections. The find underscores the potential for significant paleontological discoveries hidden within existing museum archives.
