 
 <prompt> Wetin era contain di tiny ancestor of di primate? Based on di previous question, write small tori wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Recent molecular phylogenetic studies dey suggest say most placental orders diverged about 100 to 85 million years ago and say modern families show face for the period wey dey from late Eocene go through Miocene. But paleontologists dey argue say no placental fossils don show face from before the end of the Cretaceous. The earliest undisputed fossils of placentals show face for early Paleocene, after the extinction of the dinosaurs. In particular, scientists don recently identify one early Paleocene animal wey dem name Protungulatum donnae as one of the first placental mammals. The earliest known ancestor of primates na Archicebus achilles from around 55 million years ago. This tiny primate weigh 20–30 grams (0.7–1.1 ounce) and fit inside human palm.``` 