Evidence of preserved collagen in an Early Jurassic sauropodomorph dinosaur revealed by synchrotron FTIR microspectroscopy

Yao Chang Lee, Cheng Cheng Chiang, Pei Yu Huang, Chao Yu Chung, Timothy D. Huang, Chun Chieh Wang, Ching Iue Chen, Rong Seng Chang, Cheng Hao Liao, Robert R. Reisz

研究成果: 雜誌貢獻期刊論文同行評審

77 引文 斯高帕斯(Scopus)

摘要

Fossilized organic remains are important sources of information because they provide a unique form of biological and evolutionary information, and have the long-term potential for genomic explorations. Here we report evidence of protein preservation in a terrestrial vertebrate found inside the vascular canals of a rib of a 195-million-year-old sauropodomorph dinosaur, where blood vessels and nerves would normally have been present in the living organism. The in situ synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectra exhibit the characteristic infrared absorption bands for amide A and B, amide I, II and III of collagen. Aggregated haematite particles (α-Fe 2 O 3) about 6-1/48 μm in diameter are also identified inside the vascular canals using confocal Raman microscopy, where the organic remains were preserved. We propose that these particles likely had a crucial role in the preservation of the proteins, and may be remnants partially contributed from haemoglobin and other iron-rich proteins from the original blood.

原文???core.languages.en_GB???
文章編號14220
期刊Nature Communications
8
DOIs
出版狀態已出版 - 31 1月 2017

指紋

深入研究「Evidence of preserved collagen in an Early Jurassic sauropodomorph dinosaur revealed by synchrotron FTIR microspectroscopy」主題。共同形成了獨特的指紋。

引用此