26 May 2025 The Future is the Product of the Past

Paleontologists Unearth 139 Million-Year-Old Pregnant Dinosaur Fossil in Chile

Archeologists in Chile have unearthed the fossilized remains of a 13ft-long pregnant ichthyosaur from a melting glacier -marking the first time a complete ichthyosaur has been found in the country.

The 139-million-year-old fossil was carefully collected by helicopter following an expedition in March and April this year by the University of Magallanes (UMAG) in the Tyndall Glacier area of Chilean Patagonia.

Named ‘Fiona’ by scientists at the University of Manchester, the 139-million-year-old fossil died when she was pregnant and still had several embryos in her belly.

Ichthyosaurs were marine reptiles that lived in the age of dinosaurs, and Fiona is the only pregnant female of Valanginian-Hauterivian age – between 129 and 139 million years old from the Early Cretaceous period – to be excavated on the entire planet.

Dr. Dean Lomax, a paleontologist working on the study, said: ‘The fact that these incredible ichthyosaurs are so well preserved in an extreme environment, revealed by a retreating glacier, is unlike anywhere else in the world.

The remains of the creature, which researchers from the University of Manchester have named Fiona, were unearthed from a melting glacier deep in the Patagonia.
The remains of the creature, which researchers from the University of Manchester have named Fiona, were unearthed from a melting glacier deep in Patagonia. Photo: University Of Manchester

‘The considerable number of ichthyosaurs found in the area, including complete skeletons of adults, juveniles, and newborns provides a unique window into the past.’

Now, researchers are keen to find out what information they can gather from the incredibly rare find.

Fiona was first found in 2009 by Dr. Judith Pardo-Pérez, a Magellanic paleontologist and UMAG researcher.

The team hopes to compare the ichthyosaurs found in the Tyndall Glacier with those previously found in Chilean Patagonia.

Collecting this specimen was not easy, as the glacier is within a 10-hour hike or horseback ride. The expedition lasted 31 days and was described by the researchers as an ‘almost titanic challenge.’

‘At four meters long, complete, and with embryos in gestation, the excavation will help to provide information on its species, on the palaeobiology of embryonic development, and on a disease that affected it during its lifetime,’ said Dr. Judith Pardo-Perez, who led the study.

Alongside Fiona, 23 other new specimens were discovered during the expedition, making the Tyndall Glacier the most abundant ichthyosaur graveyard in the world, according to the team.

ichthyosaurs
Ichthyosaurs.

Alongside Fiona, 23 other new specimens were discovered during the expedition, making the Tyndall Glacier the most abundant ichthyosaur graveyard in the world, according to the team.

Fiona will now be prepared in the paleontology laboratory of the Río Seco Natural History Museum in Punta Arenas, where it will be temporarily stored for later exhibition.

University Of Manchester

Related Articles

A unique find in the Middle Don: Scythian gods on a silver plate

19 November 2021

19 November 2021

Archaeologists of the Archaeological Institute of the Russian Academy of Sciences, during their excavations at the Devitsa V cemetery in...

Unusual Iron Age Female Grave Found in Pryssgården, Sweden

3 November 2024

3 November 2024

In an Iron Age cemetery in Sweden, archaeologists found a woman’s grave buried with a small needle and an iron...

Battle of the Egadi Islands: Rome’s deadly weapons discovered off Sicily

3 September 2021

3 September 2021

Underwater archaeologists from the Soprintendenza del Mare Regione Siciliana, RPM Nautical Foundation, and the Society for the Documentation of Submerged...

Evidence of Necromancy during Roman era in the Te’omim Cave, Jerusalem Hills: Oil Lamps, Spearheads, and Skulls

14 July 2023

14 July 2023

Te’omim Cave in the Jerusalem Hills may once have served as a local oracle where people communed with the dead...

In a Wisconsin lake, archaeologists discover a 1,200-year-old dugout canoe

6 November 2021

6 November 2021

Maritime archaeologists from the Wisconsin Historical Society have discovered a dugout wooden canoe in Lake Mendota, Wisconsin, USA. Carbon analysis...

Ancient Babylon Excavation Uncovers 478 Artifacts Including Cuneiform Tablets, and Cylindrical Seals

16 October 2024

16 October 2024

The Iraqi State Board of Antiquities and Heritage (SBAH) announced that 478 artifacts were uncovered during an excavation expedition in...

A 3,600-Year-Old Bronze Minoan Dagger Discovered in Antalya Underwater Excavation

29 August 2024

29 August 2024

A bronze dagger with silver rivets that dates to the Minoan civilization approximately 3,600 years ago was discovered during an...

Researchers have found in miniature ceramic bottles evidence of the oldest known use of cosmetics in the Balkans

14 July 2021

14 July 2021

In miniature ceramic bottles from excavations ascribed to the Lasinja Culture in the Southeast Prealps and the Vinča Culture in...

A new Indo-European Language discovered in the Hittite capital Hattusa

21 September 2023

21 September 2023

The Çorum Provincial Directorate of Culture and Tourism announced in a written statement that a new Indo-European language was discovered...

Iconic Double Arch collapsed after an ancient pyramid in America, Tribes Link Fall With ‘Bad Omen’

10 August 2024

10 August 2024

Two ancient North American structures collapsed within just nine days of one another. The iconic Double Arch, also known as...

The Sedgeford Anglo-Saxon malting complex may be the largest ever discovered in the UK

23 July 2023

23 July 2023

As archaeological excavations resume on a hill in Sedgeford, near Hunstanton, a seaside town in Norfolk, England, now more evidence...

Turkey Adds New Sites to UNESCO World Heritage Tentative List

30 April 2021

30 April 2021

Two additional cultural objects have been added to Turkey’s World Heritage Tentative List, bringing the total number of cultural assets...

Researchers excavating the burial site along Caleta Vítor Bay in northern Chile found an Inka Tunic or unku

15 February 2023

15 February 2023

A recently published study, co-authored by a research professor at George Washington University, looks at the Inka Empire’s (also known...

Archaeologists unearth the Torah Ark of the Great Synagogue of Vilna, destroyed in Lithuania

30 August 2021

30 August 2021

In Vilnius, the capital of Lithuania, in excavation exposed the Torah ark and bimah (raised prayer platform) of the Great...

New stone ram heads unearthed in Luxor, Egypt

15 October 2021

15 October 2021

Mustafa al-Waziri, the Secretary-General of the Supreme Council of Antiquities (SCA), recently announced the discovery of new stone ram heads...