Journal
LETHAIA
Volume 48, Issue 1, Pages 47-55Publisher
WILEY
DOI: 10.1111/let.12086
Keywords
Bone histology; lesion; multifocal; osteomyelitis; periosteal reaction
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Funding
- Jurassic Foundation
- Hokkaido University
- Claude Leon Foundation, South Africa
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Palaeopathologies are relatively common in the fossil record; however, bone histological analyses of these are rare as they are more commonly discovered and described using radiological scans. Here, we describe the bone microstructure of infectious abscesses (osteomyelitis) in the long bones of two Stegosaurus individuals from the Como Bluff area of the Late Jurassic Morrison Formation. Multiple lytic, geographical lesions filled with reactive lamellar bone occur in a femur of a juvenile specimen. A single lesion was found in an adult tibia. This lesion is characterized by the presence of spiculated periosteal reactive growth perpendicular to the bone surface and the formation of new trabeculae within the lesion.
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