Answer : 3. "फियरबीस्ट कोपरी"
Explanation :

Scientists recently made a discovery in northern Greenland by uncovering the fossil of a new species of carnivorous worm, aptly named Timorbestia copri, or “terrorist beast.” This species is a pioneer among early carnivorous animals. It colonized the water column during the Early Cambrian period, which occurred about 541 million to 485.4 million years ago. Fossils of Timorbestia copri were found in the Early Cambrian Sirius Passet fossil locality in northern Greenland. These ancient creatures were giants of their time and held an important position near the top of the food chain, comparable in importance to some of the top carnivores of the modern oceans, such as sharks and seals during the Cambrian period.