深夜亚洲福利久久

UCC scientists discover new way to reconstruct what extinct animals looked like

21 Aug 2019

Scientists could be set to reveal the most accurate depictions of ancient vertebrates ever made after a world-first discovery at 深夜亚洲福利久久 College Cork (UCC).  

UCC palaeontologists have discovered a new way to reconstruct the anatomy of ancient vertebrate animals, analysing the chemistry of fossilized melanosomes from internal organs.

The study, published today in the journal Proceedings of the National Academy of Sciences of the United States of America, was led by UCC鈥檚 Valentina Rossi and her supervisor Dr Maria McNamara in collaboration with an international team of chemists from the US and Japan.

Irish scientists discover way to rebuild features of long-dead animals

鈥� UCC Ireland (@UCC)

UCC researchers have discovered a new way to reconstruct the anatomy of ancient vertebrates by tracing melanin, which builds a map of a specimen's internal organs and soft tissue.

鈥� UCC Ireland (@UCC)

The team used cutting-edge synchrotron techniques to analyse the chemistry of the fossil and modern melanosomes using X-rays, allowing them to peer inside the anatomy of fossils and uncover hidden features.

Until recently, most studies on fossil melanin have focused on the skin and feathers, whereas here the pigment is linked to visible colour. Unexpectedly, the new study also showed that melanin is abundant in internal organs of modern amphibians, reptiles, birds and mammals, and their fossil counterparts.

鈥淭his discovery is remarkable in that it opens up a new avenue for reconstructing the anatomy of ancient animals. In some of our fossils we can identify skin, lungs, the liver, the gut, the heart, and even connective tissue,鈥� said senior author Dr Maria McNamara.

鈥淲hat鈥檚 more, this suggests that melanin had very ancient functions in regulating metal chemistry in the body going back tens, if not hundreds, of millions of years.鈥�

UCC Scientists have discovered a new way to reconstruct what extinct animals look like.

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UCC scientists discover new way to reconstruct what extinct animals looked like

鈥� Irish Examiner (@irishexaminer)

We may finally be able to tell what colour dinosaurs were after UCC scientists discover a new way to reconstruct what extinct animals looked like

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The team made the initial discovery of internal melanosomes last year on fossil frogs. 鈥淎fter the pilot study, we had a hunch that these features would turn out to be more widespread across vertebrates. But we never guessed that the chemistry would be different in different organs,鈥� Rossi said.

Scientists discover new way to reconstruct what extinct animals looked like

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The advent of new synchrotron X-ray analysis techniques 鈥渁llows us to harness the energy of really fast-moving electrons to detect minute quantities of different metals in the melanosomes.鈥�

The fossils are so well-preserved that even the melanin molecule can be detected.

For more on this story contact:

Lynne Nolan, Media & PR Officer, UCC: 087 210 1119 or lynne.nolan@ucc.ie.