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Pelagornis

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Pelagornis was a group of prehistoric seabirds that lived a very long time ago.

Pelagornis chilensis 1
Pelagornis chilensis 1

These birds are known as pseudotooth birds. This name describes a very special feature on their beaks. Instead of having real teeth in sockets, they had bony bumps. These bony extensions are called pseudoteeth. These bumps helped the birds grip slippery prey in the ocean.

Pelagornis mauretanicus
Pelagornis mauretanicus

They were likely very good at soaring over the waves.

These birds had a very interesting way of working. Their pseudoteeth were not like the teeth in your mouth. They did not have enamel. They also did not grow in sockets. Most importantly, the birds did not lose and replace them throughout their lives. Between every two large pseudoteeth, there was often a single smaller one. This helped them catch food more easily. They also had very large salt glands inside their eye sockets. These glands helped them live in the salty ocean water.

Scientists have spent many years studying these fossils. The first species described was Pelagornis miocaenus. It was found in sediments in Armagnac, France. Scientists once thought it lived in the Middle Miocene time period. Later, they realized it was from the Early Miocene. A single bone from this bird was almost as big as a human arm. Another species, Pelagornis mauretanicus, was named much later in 2008. Its remains were found in Morocco.

Pelagornis mauretanicus
Pelagornis mauretanicus

One species was much larger than all the others. It is called Pelagornis sandersi.

Pelagornis sandersi
Pelagornis sandersi

This bird lived about 25 million years ago during the Oligocene. A worker named James Malcom found its fossil in 1983. He was building a new terminal at the Charleston International Airport in South Carolina. The fossil sat in storage for a long time. Then, a scientist named Dan Ksepka found it again in 2010. He identified it as a new species in 2014. The bird is named after Albert Sanders, who led the excavation.

Pelagornis sandersi was truly a giant among birds.

Pelagornis sandersi compare size
Pelagornis sandersi compare size

Its wingspan was estimated to be about 6 meters wide. This is the largest wingspan of any bird ever discovered. It is twice as wide as a wandering albatross. The albatross is the largest bird living today. This massive bird even took the record from another extinct bird called Argentavis magnificens. It is amazing to think such huge creatures once flew through the sky.

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🖼️ Images & Media (6)
File:Pelagornis sandersi.png
Pelagornis sandersi.png
File:Pelagornis chilensis 1.jpg
Pelagornis chilensis 1.jpg
File:Pelagornis mauretanicus.jpg
Pelagornis mauretanicus.jpg
File:Pelagornis_sandersi_compare_size.png
Pelagornis_sandersi_compare_size.png
File:Pelagornis mauretanicus.png
Pelagornis mauretanicus.png
File:Pelagornis chilensis EF.jpg
Pelagornis chilensis EF.jpg
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