Hi,
I wanted to ask whether apartheid in South Africa deterred many American and non-British European paleontologists from prospecting Mesozoic deposits in South Africa for fossils of dinosaurs and mammal relatives, but also prehistoric mammals, because maybe many American paleontologists (including African Americans) were so self-conscious of their country having made strides in civil rights legislation for African Americans and other non-white Americans to become a racially inclusive democracy that they were extremely reluctant to do paleontologist fieldwork in South Africa as long as the South African government did not treat blacks in South Africa as politically equal to South African whites.
Just like the Great Proletarian Cultural Revolution and the Iron Curtain, apartheid in South Africa could be another example of politics getting in the way of American paleontological fieldwork abroad.