No. 45: May-Jun 1986
Scientists have long assumed that the primates originated in Africa, spread to Europe, and then jumped to North America. This hypothesis may be over turned by the discovery of fossils of early primates in Wyoming. The revised route would be Africa-Asia-North America, the reverse of the prevailing theory. This item also remarks that "Remains of early 'true' primates have not been uncovered in Africa." The reason is that the deposits that should contain them have all been eroded away.
(Bower, B.; "Wyoming Fossils Shake Up Views of Early Primate Migration," Science News, 129:71, 1986.)
Comment. One wonders about the "missing" African strata and fossils. Perhaps they never existed. Here is an in-stance where theory requires certain data, as with evolution's missing links. Sometimes "missing" data is really missing!