A powerful winter storm has led to the discovery of two fossilized whales estimated to be around 10 million years old, after strong winds and waves uncovered their remains on a beach in Portugal.

The skeletons, which include skulls, jaws and major bones, are providing scientists with valuable new clues about the evolution of baleen whales, reshaping current understanding of their early development.

Race Against the Tide

The fossils were found embedded in a narrow strip of exposed rock between the sea and the sand, following the erosion caused by recent storms. Scientists were forced to act quickly, with only a limited window between tides to recover the remains before they risked being lost again.

The recovery operation required rapid stabilization, careful packaging and immediate transport, as even minor delays could have resulted in damage or reburial by the sea.

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A Glimpse Into the Miocene Era

The exposed rock formation stretches over 100 meters and dates back to the Miocene epoch, a period between 23 and 5 million years ago. During this time, the region’s coastline and marine ecosystem were significantly different, supporting a rich diversity of sea life.

Studies suggest the fossils are approximately 11.5 million years old, placing them within a period of intense evolutionary activity for marine species.

More Than Just Whales

In addition to the whale remains, researchers identified fossils of dolphins, turtles, sharks, fish and possibly birds, along with shells and traces of ancient marine organisms.

This combination of findings allows scientists to study the whales within their natural environment, rather than as isolated specimens, offering a more complete picture of the ecosystem in which they lived.

Early Baleen Whales

Initial analysis of the skulls indicates that the whales belong to the Mysticeti group, also known as baleen whales—the same broad category as modern giants like the blue whale. However, these ancient species appear to have been smaller, representing earlier stages in the evolutionary line.

Researchers believe the fossils may belong to the extinct Cetotheriidae family, a group of small to medium-sized whales whose classification remains complex and still under scientific review.

A Rare European Find

Discoveries of Miocene whale fossils with such well-preserved skulls and body structures are rare in Europe. One of the specimens includes a skull, lower jaws, vertebrae and ribs, while the second appears to be even better preserved.

The completeness of the fossils is expected to provide rare insights into whale anatomy, behavior and diversity during this period.

From Beach to Laboratory

The fossils are currently under temporary protection before being transferred to a laboratory for cleaning and conservation. There, scientists will remove surrounding rock and reinforce the fragile bones for further study.

The coming months of analysis will determine whether this discovery represents a major breakthrough in paleontology or simply a remarkable recovery from the sea.

A Discovery Born From the Storm

What began as a storm-driven erosion event has revealed a hidden chapter of Earth’s history, preserving a snapshot of ancient marine life.

Scientists hope the findings will help answer key questions about how early baleen whales lived and evolved—long before the largest animals on Earth came to dominate the oceans.