Microscopical and elemental FESEM and Phenom ProX-SEM-EDS analysis of osteocyte- and blood vessel-like microstructures obtained from fossil vertebrates of the Eocene Messel Pit, Germany

This study reveals the exceptional preservation of osteocyte-like and blood vessel-like microstructures within fossilized bones from Eocene vertebrates at the UNESCO World Heritage Site Messel Pit, Germany. These microstructures, identified in turtles, crocodiles, and a pangolin, exhibit distinct chemical and physical characteristics, including a thin layer with mottled texture and striations, as well as microbial troughs on their surfaces. Iron (Fe) was notably abundant in these structures but absent from the bone matrix or collagen fibril-like microstructures. The findings suggest that soft-tissue elements, at least in their physical form, can be preserved in Messel fossils, paving the way for future investigations into biomolecule preservation, such as proteins or DNA.

Cadena, E. (2016). Microscopical and elemental FESEM and Phenom ProX-SEM-EDS analysis of osteocyte- and blood vessel-like microstructures obtained from fossil vertebrates of the Eocene Messel Pit, Germany. PeerJ, 4, e1618. Portico. https://doi.org/10.7717/peerj.1618