Bright and shiny animals are all over the office , fromdeep ocean wormspecies toelectric blue tarantulasand evenbright jellyfish . Now , several ancientharvestmenhave been discovered in Germany , and the iridescence has even been preserved within the dodo .

This research marks the first dodo harvestmen discovered from the Eocene , roughly 48 million years ago . The specimens have the “ daddy tenacious leg ” appearance with humble bodies and long lank legs . The squad think that these ancient harvestman belong to the family Sclerosomatidae , which is still around today .

The specimen were encounter at the Messel Pit near Darmstadt in Hesse , Germany , which is usually more famous for revealing vertebrate fossils . In the in-between Eocene , the area would have been subtropical to tropic timberland . These specimens are the first dodo harvestmen to be described from the Messel Pit , though antecedently some arachnids and louse have also been find . They are the oldest fossil harvestmen from Germany , and the first fossil arachnid to have metallic opalescence preserved within the cuticle .

One of the specimins found in Germany. A full body photo is top left, with close ups showing the iridesents in the two right hand images and a graphic of the body plan in the left bottom image.

48 million years old and still shining.Image Credit: Bartel, C., et al. Palaeobiodiversity and Palaeoenvironments (2024)CC BY 4.0

In total , the team looked at nine specimens . They were capable to put the harvestmen in the syndicate Sclerosomatidea based on a few central detail such as the pedipalp claw being pectinate and the top side of the opisthosoma being fused into a individual plate .

The opalescence catch on the dodo remind the researchers of a living family of modern Phalangium opilio that belong to the Gagrellinae subfamily . presently , the subfamily contains around 1,000 coinage , across the Neotropics and northern Australia , and Malaysia .

The paper is write in the journalPalaeobiodiversity and Palaeoenvironments .

Three photos of one of the fossils and a graphic of the body bottom left. Legs can be seen in the overview.

Leiobunum messelense, showing as the complete specimen and the body close up.Image Credit: Bartel, C., et al (2024) Palaeobiodiversity and PalaeoenvironmentsCC BY 4.0