Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs
Abstract The identity and source of flexible, semi-transparent, vascular-like components recovered from non-avian dinosaur bone are debated, because: (1) such preservation is not predicted by degradation models; (2) taphonomic mechanisms for this type of preservation are not well defined; and (3) al...
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-85497-y |
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| author | M. H. Schweitzer W. Zheng E. Dickinson J. Scannella A. Hartstone-Rose P. Sjövall J. Lindgren |
| author_facet | M. H. Schweitzer W. Zheng E. Dickinson J. Scannella A. Hartstone-Rose P. Sjövall J. Lindgren |
| author_sort | M. H. Schweitzer |
| collection | DOAJ |
| description | Abstract The identity and source of flexible, semi-transparent, vascular-like components recovered from non-avian dinosaur bone are debated, because: (1) such preservation is not predicted by degradation models; (2) taphonomic mechanisms for this type of preservation are not well defined; and (3) although support for molecular endogeneity has been demonstrated in select specimens, comparable data are lacking on a broader scale. Here, we use a suite of micromorphological and molecular techniques to examine vessel-like material recovered from the skeletal remains of six non-avian dinosaurs, representing different taxa, depositional environments and geological ages, and we compare the data obtained from our analyses against vessels liberated from extant ostrich bone. The results of this in-depth, multi-faceted study present strong support for endogeneity of the fossil-derived vessels, although we also detect evidence of invasive microorganisms. |
| format | Article |
| id | doaj-art-247f12880d9c4abbbc4ca3f252468d13 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-247f12880d9c4abbbc4ca3f252468d132025-02-09T12:32:23ZengNature PortfolioScientific Reports2045-23222025-02-0115111610.1038/s41598-025-85497-yTaphonomic variation in vascular remains from Mesozoic non-avian dinosaursM. H. Schweitzer0W. Zheng1E. Dickinson2J. Scannella3A. Hartstone-Rose4P. Sjövall5J. Lindgren6Department of Biological Sciences, North Carolina State UniversityDepartment of Biological Sciences, North Carolina State UniversityDepartment of Biological Sciences, North Carolina State UniversityMuseum of the Rockies, Montana State UniversityDepartment of Biological Sciences, North Carolina State UniversityMaterials and Production, RISE Research Institutes of SwedenDepartment of Geology, Lund UniversityAbstract The identity and source of flexible, semi-transparent, vascular-like components recovered from non-avian dinosaur bone are debated, because: (1) such preservation is not predicted by degradation models; (2) taphonomic mechanisms for this type of preservation are not well defined; and (3) although support for molecular endogeneity has been demonstrated in select specimens, comparable data are lacking on a broader scale. Here, we use a suite of micromorphological and molecular techniques to examine vessel-like material recovered from the skeletal remains of six non-avian dinosaurs, representing different taxa, depositional environments and geological ages, and we compare the data obtained from our analyses against vessels liberated from extant ostrich bone. The results of this in-depth, multi-faceted study present strong support for endogeneity of the fossil-derived vessels, although we also detect evidence of invasive microorganisms.https://doi.org/10.1038/s41598-025-85497-yAncient proteinsDinosaur soft tissuesImmunohistochemistryMolecular palaeontologyToF-SIMS |
| spellingShingle | M. H. Schweitzer W. Zheng E. Dickinson J. Scannella A. Hartstone-Rose P. Sjövall J. Lindgren Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs Scientific Reports Ancient proteins Dinosaur soft tissues Immunohistochemistry Molecular palaeontology ToF-SIMS |
| title | Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs |
| title_full | Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs |
| title_fullStr | Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs |
| title_full_unstemmed | Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs |
| title_short | Taphonomic variation in vascular remains from Mesozoic non-avian dinosaurs |
| title_sort | taphonomic variation in vascular remains from mesozoic non avian dinosaurs |
| topic | Ancient proteins Dinosaur soft tissues Immunohistochemistry Molecular palaeontology ToF-SIMS |
| url | https://doi.org/10.1038/s41598-025-85497-y |
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