Ancient oceans were ruled by super predators unlike anything today

From ScienceDaily

Around 130 million years ago, the ocean’s most dominant hunters held far more power than any marine predator alive today. Recent research from McGill University reveals that during the Cretaceous period, some sea creatures sat at the very top of an extraordinarily complex food chain, surpassing modern standards of ecological dominance.

The findings come from a study published in the Zoological Journal of the Linnean Society, which reconstructs the ancient marine ecosystem preserved in Colombia’s Paja Formation. According to the research, this prehistoric sea was filled with enormous marine reptiles, some growing longer than 10 meters, that occupied a previously unseen seventh level of the food chain.