“人类起源的”常见英文表达可以是 “of human origin” 或者 “pertaining to the origin of humans” 。
“of human origin” 较为简洁常用,例如:Objects of human origin have been found in this ancient site.(在这个古遗址中发现了人类起源的物品 。)
“pertaining to the origin of humans” 相对更正式、详细,例如:We need more research on topics pertaining to the origin of humans.(我们需要对与人类起源相关的话题进行更多研究 。)