What does the similarity between Mbiresaurus and South American dinosaurs reveal about Pangaea?

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The Similarity Between Mbiresaurus and South American Dinosaurs Reinforces Pangaea's Continental Link

The discovery of Mbiresaurus raathi in Zimbabwe reveals significant insights into the supercontinent Pangaea. Mbiresaurus raathi, Africa's oldest known dinosaur dating back approximately 230 million years, exhibits remarkable similarities to dinosaurs of the same age found in Brazil and Argentina. This striking resemblance strongly supports the scientific understanding that South America and Africa were once part of a continuous landmass during the Late Triassic period.
Mbiresaurus Raathi's Physical Characteristics and Classification

Mbiresaurus raathi was a relatively small dinosaur, standing about one metre (3.2 feet) tall and weighing up to 30 kilograms (66 pounds). It was bipedal, possessing a long tail and a comparatively small head. Palaeontologists classify Mbiresaurus raathi within the sauropodomorph species, a lineage that would later evolve into the giant long-necked dinosaurs. Its diet is believed to have been omnivorous, consuming plants, small animals, and insects.
Expedition and Discovery Context

The skeleton of Mbiresaurus raathi was unearthed during expeditions conducted in 2017 and 2019. These research efforts involved an international team of palaeontologists from Zimbabwe, Zambia, and the United States. The findings were subsequently published in the esteemed journal Nature. Prior to this discovery, dinosaur remains from this specific geological era had exclusively been found in South America and India.
Strategic Site Selection and Continental Drift

The specific site in Zimbabwe was chosen for excavation due to its palaeogeographical positioning. Researchers calculated that when the continents were connected as the supercontinent Pangaea, this region lay at a similar latitude to areas in South America where comparable fossils had previously been discovered. This strategic selection was instrumental in uncovering Mbiresaurus raathi, reinforcing the theory of continental drift and the interconnectedness of landmasses during the Late Triassic.
Naming and Broader Implications of the Discovery

The dinosaur has been named Mbiresaurus raathi in honour of the Mbire district in northeastern Zimbabwe, where its remains were found, and the palaeontologist Michael Raath, who had previously reported fossils in the region. This discovery is significant as it substantially broadens the known geographical range where the earliest dinosaurs inhabited. The near-complete Mbiresaurus skeleton is considered invaluable reference material for future palaeontological research, with other discovered specimens housed at the Natural History Museum of Zimbabwe.

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What does the similarity between Mbiresaurus and South American dinosaurs reveal about Pangaea?

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