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Soft-tissue vessels and cellular preservation in Tyrannosaurus rex

Author:
Schweitzer, MH  Wittmeyer, JL  Horner, JR  Toporski, JK  


Journal:
SCIENCE


Issue Date:
2005


Abstract(summary):

Soft tissues are preserved within hindlimb elements of Tyrannosaurus rex (Museum of the Rockies specimen 1125). Removal of the mineral phase reveals transparent, flexible, hollow blood vessels containing small round microstructures that can be expressed from the vessels into solution. Some regions of the demineralized bone matrix are highly fibrous, and the matrix possesses elasticity and resilience. Three populations of microstructures have cell-like morphology. Thus, some dinosaurian soft tissues may retain some of their original flexibility, elasticity, and resilience.


Page:
1952---1955


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