The discovery of a new sauropodomorph dinosaur, Musango matusadonaensis, suggests Zimbabwe's Triassic fauna were distinct from those in neighboring South Africa.
Key facts
- •Musango matusadonaensis was a bipedal, herbivorous sauropodomorph that grew to about 4.5 meters in length.
- •The fossils were found in Matusadona National Park near Lake Kariba, in rocks dating to approximately 210 million years ago.
- •Researchers identified the species as distinct from South African counterparts, challenging long-held assumptions about regional dinosaur distribution.
- •The research team used houseboats as mobile laboratories during expeditions conducted in 2017 and 2018.
- •Other unique finds in the region include lungfish and aquatic reptiles known as phytosaurs.
Paleontologists have identified a new sauropodomorph dinosaur species, Musango matusadonaensis, discovered in Zimbabwe's Matusadona National Park. The findings, based on expeditions in 2017 and 2018, indicate that Zimbabwean dinosaur populations during the Late Triassic period were unique rather than extensions of better-known South African species.
By the numbers
Discovery and Anatomy of Musango matusadonaensis
The incomplete skeleton of Musango matusadonaensis was recovered from the banks of the Nyamasango River. Analysis shows the dinosaur was bipedal, reached approximately 4.5 meters in length, and weighed 220 kilograms. Growth marks in the bones indicate the specimen was a subadult at the time of death. While the skull was not preserved, researchers believe the species was likely herbivorous, consistent with its close relatives.
Distinct Regional Faunas
Researchers previously assumed that Zimbabwean fossils belonged to species already identified in South Africa due to geographic proximity. However, recent work on material from Lake Kariba and historical collections in Bulawayo suggests otherwise. The presence of unique dinosaurs like Musango and Musankwa, alongside other animals such as lungfish and phytosaurs, indicates a distinct regional ecosystem. Scientists hypothesize that Zimbabwe's location closer to the equator during the Triassic period may have created different environmental conditions that drove this evolutionary divergence.
Expedition and Research Context
The fossils were collected from mudstones and sandstones dating back approximately 210 million years. The research team, led by Jonah Choiniere of the University of the Witwatersrand, utilized houseboats on Lake Kariba to access remote sites within the national park. Ongoing efforts include re-evaluating historical collections in Bulawayo and conducting further fieldwork to better understand the environmental factors that shaped early dinosaur evolution in the region.
Timeline
- 1916Dinosaur bones were first reported in Zimbabwe.
- 1970sPaleontologists Geoffrey Bond and Michael Raath conducted pioneering work in Bulawayo and the Zambezi Valley.
- 2017 and 2018International teams conducted two expeditions to Matusadona National Park.
- 2024Researchers described the dinosaur species Musankwa from the same fossil beds.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by Phys.org.
