Researchers Identified New Prehistoric Species in Tanzania
A dicynodont fossil found in the Ruhuhu Basin reveals the species lived 240 million years ago.
Updated on Sept. 22, 2026 in Geology
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Scientists from the University of Bristol have identified the prehistoric species Dinodontosaurus isiyavamanda from fossil remains collected in Tanzania. These specimens, which previously belonged to a group only known in South America, spent 60 years in storage at the London Natural History Museum.
Why it matters
The discovery acts as a crucial chronological marker to align the dating of Triassic rock layers across continents. By clarifying these timelines, researchers can better understand the evolutionary emergence of the first dinosaurs.
The study utilized comparative analysis of bone and skull fragments against existing South American specimens. These fossils date back approximately 240 million years to the Triassic period.
The players
University of Bristol
This is a public research university in England that leads significant studies in paleontology and evolutionary biology.
London Natural History Museum
This institution is a world-renowned center for scientific research and houses one of the largest collections of natural history specimens globally.
The details
Researchers analyzed previously unstudied material held at the museum since 1963 to confirm the species. This finding bridges a geographic gap, as the dicynodont group was previously thought to be restricted to South American territories.
Timeline
Fossil bones were collected in the Ruhuhu Basin in 1963.
The specimens remained in museum storage for 60 years.
The species lived during the Triassic period approximately 240 million years ago.
The Big Picture
This discovery updates the established timeline for the evolution of the Triassic dicynodont group by linking Tanzanian deposits to South American ones. It shifts the paradigm of geographic distribution for early Triassic fauna, disproving the assumption that these creatures were limited to a single continent.
Refining the dating of Triassic rock layers helps scientists reconstruct Earth's climate and environmental history with greater precision. This improved timeline provides a foundational tool for researchers mapping future ecological transitions.
The takeaway
This finding demonstrates the immense scientific value locked away in decades-old museum collections that have yet to be thoroughly studied. It underscores that major breakthroughs in understanding ancient history can occur through the meticulous re-examination of existing archives.
What happens next
Researchers are scheduled to conduct further analysis on the remaining, unexamined portions of the Tanzanian fossil collection held at the London Natural History Museum.
Further reading
For more information on the geological history of the Earth, visit the /science/geology/ section.
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