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Tanzania fossil discovery suggests oldest dinosaur fossils are younger than believed

As of September 2026: PhD candidate and lead author, planning follow-up work on the remaining Tanzanian fossil material

A fossil that sat in a London museum for more than 60 years is forcing paleontologists to revise the early dinosaur timeline. The animal, Dinodontosaurus isiyavamanda, was a plant-eater that lived in what is now Tanzania about 240 million years ago.

Updated Sep 16

Notable Quotes

Our discovery marks the first confirmed record of the genus Dinodontosaurus outside South America.

from Tanzania fossil discovery suggests oldest dinosaur fossils are younger than believed · Updated Sep 16

This helps confirm that the oldest dinosaur candidates from Tanzania are probably no older than those from South America, refining the timeline of dinosaur origins.

from Tanzania fossil discovery suggests oldest dinosaur fossils are younger than believed · Updated Sep 16