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Photographic gallery.  Thousands of particles under the microscope.
Dinosaur Bone Cross-Section Under the Microscope

Thin Section of Dinosaur Bone

The circular patterns are the "concentric lamellae" of the "Haversian Canal" in the center. Most of the Haversian canals in the fossil bone are filled with quartz or calcite. In live bone they are open and in thin section would appear dark. The black specks are called "Osteocytes" and they are also preserved in the fossil.

Transmitted Brightfield Illumination


Significance in the Environment:

Characteristic Features:

Associated Particles:


Chinsamy-Turan, Anusuya, THE MICROSTRUCTURE OF DINOSAUR BONE, Johns Hopkins Publisher, 2005