Oldest fossilized ink found in UK

The preserved ink sacs belonged to an ancient cephalopod, the group of marine creatures that includes squid, octopus and cuttlefish, LiveScience reported.

Study researcher John Simon of the University of Virginia says the molecular structure of the ancient ink is very similar to that of modern cuttlefish Sepia officinalis.

Chemical tests conducted on the fossil ink sacs confirmed that the pigment in the sacs was eumelanin, a type of black or dark brown melanin.

According to the study published in the journal Proceedings of the National Academy of Sciences, Simon and his colleagues are planning to investigate some fossil deposits from England that may contain pigment dating back to 500 million years ago.

Modern cuttlefish use their ink to distract predators, an ability that seems to date back many more years ago.

“We couldn’t find anything that distinguished the pigment in the fossil from the pigment in a modern-day cuttlefish, which suggests the pigment hasn’t changed in 160 million years,” Simon said.

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