Researchers have recently unearthed a bounty of fossil-bearing amber in Ethiopia. These 95 million year old amber pieces contain a variety of life forms including plants, fungai, bacteria, nematodes and many species of arthropods. The arthropods found in the amber include springtails, fairy wasps, thrips, Zorapterans (a species-poor Insect order that I had never heard of), and arachnids. Here are some shots of the arthropod amber inclusions.
These sort of amber fossils are especially useful in piecing together the complex interplay of life in ancient ecosystems. They provide a snapshot of a wide variety of contemporary and interdependent life that other fossil types do not preserve. This find helps fill in some especially troublesome gaps in Cretaceous African biodiversity.