Final answer:
Sivaladapids are primates that lived during the Eocene epoch and shared characteristics with modern-day strepsirrhine primates.
Step-by-step explanation:
Sivaladapids are primates that lived during the Eocene epoch, which began approximately 54 million years ago and ended about 34 million years ago. They were one of the many groups of primates that evolved during this time, and they shared certain characteristics with modern-day strepsirrhine primates such as lemurs. Sivaladapids possessed postorbital bars, toothcombs, and grooming claws, which are all traits that are exclusively found in strepsirrhine primates today.