ArticleScientific reports2017
Palaeobiology of red and white blood cell-like structures, collagen and cholesterol in an ichthyosaur bone.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 53 citations in OpenAlex.
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- Medusa's gaze: Cell traces and fibrils but no collagen in permineralized Jurassic ichthyosaur bone.iScience · 2025Article
- Age is just a number: Examining the preservation of cells and soft tissues in Bothriolepis and other Devonian fish.PloS one · 2025Article
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- Review of Recent Advances in Gas-Assisted Focused Ion Beam Time-of-Flight Secondary Ion Mass Spectrometry (FIB-TOF-SIMS).Materials (Basel, Switzerland) · 2023Review
- Microbially mediated fossil concretions and their characterization by the latest methodologies: a review.Frontiers in microbiology · 2023Review
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- Diagenetic processes in Quaternary fossil bones from tropical limestone caves.Scientific reports · 2020Article
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- A Reassessment of the Coprostane Biomarker in the Ediacaran With Implications for Dickinsonia.GeobiologyArticle
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Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Carbonate concretions are known to contain well-preserved fossils and soft tissues. Recently, biomolecules (e.g. cholesterol) and molecular fossils (biomarkers) were also discovered in a 380 million-year-old concretion, revealing their importance in exceptional preservation of biosignatures. Here, we used a range of microanalytical techniques, biomarkers and compound specific isotope analyses to report the presence of red and white blood cell-like structures as well as platelet-like structures, collagen and cholesterol in an ichthyosaur bone encapsulated in a carbonate concretion from the Early Jurassic (~182.7 Ma). The red blood cell-like structures are four to five times smaller than those identified in modern organisms. Transmission electron microscopy (TEM) analysis revealed that the red blood cell-like structures are organic in composition. We propose that the small size of the blood cell-like structures results from an evolutionary adaptation to the prolonged low oxygen atmospheric levels prevailing during the 70 Ma when ichthyosaurs thrived. The δ
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