Biomolecular characterization and protein sequences of the campanian hadrosaur b. canadensis Academic Article uri icon

Overview

MeSH Major

  • Collagen
  • Dinosaurs
  • Femur
  • Fossils
  • Proteins

abstract

  • Molecular preservation in non-avian dinosaurs is controversial. We present multiple lines of evidence that endogenous proteinaceous material is preserved in bone fragments and soft tissues from an 80-million-year-old Campanian hadrosaur, Brachylophosaurus canadensis [Museum of the Rockies (MOR) 2598]. Microstructural and immunological data are consistent with preservation of multiple bone matrix and vessel proteins, and phylogenetic analyses of Brachylophosaurus collagen sequenced by mass spectrometry robustly support the bird-dinosaur clade, consistent with an endogenous source for these collagen peptides. These data complement earlier results from Tyrannosaurus rex (MOR 1125) and confirm that molecular preservation in Cretaceous dinosaurs is not a unique event.

publication date

  • May 2009

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1126/science.1165069

PubMed ID

  • 19407199

Additional Document Info

start page

  • 626

end page

  • 31

volume

  • 324

number

  • 5927