Impressive fossil of a pregnant fish lizard – 139 million years old – discovered on a glacier


Thousands of scientists have discovered one of the most impressive fish fossils ever found in the world.

It is an extremely well-preserved fossil, found in the Tidal Glacier, in the northern part of Patagonia, which belongs to Chile.

“Fiona”, as the scientists gave the name to the female fish lizard, was pregnant when she lost her life. In fact, the embryos are “intact” in the huge fossil.

The 4-meter-long fossil will help scientists study the embryonic development of fish lizards that roamed the oceans 90-250 million years ago.

Judith Pardo, leader of the team that made the impressive discovery, said of the fossil that “it is the only pregnant fish lizard dating before 129-139 million years»That has been found in the world. That is why he spoke of an “incredibly important discovery”.

Pardo, a paleontologist at the GAIA Research Center, discovered the fossil a decade ago, but extreme climatic conditions and inaccessible terrain made the process of extracting the fossil complicated. It took scientists 31 days to extract the fossil, which they transported by helicopter.

The fossil will soon be on display at an exhibition at the Museum of Natural History in Rio Seco, southern Chile.

Pardo said scientists also discovered 23 samples of fish lizards during their campaign in the area, bringing the number of related finds on the Tidal Glacier to about 100.

This glacier is considered one of the richest and best preserved sites with remnants of ancient marine reptiles.

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