Tham khảo Tầng_Champagne

  1. ↑ “ICS Timescale Chart”. www.stratigraphy.org. 
  2. ↑ “Global Boundary Stratotype Section and Point”. International Commission of Stratigraphy. Truy cập ngày 22 tháng 12 năm 2020. 
  3. ↑ See for a detailed geologic timescale Gradstein et al. (2004)
Văn liệu
  • Gradstein, F.M.; Ogg, J.G. & Smith, A.G.; 2004: A Geologic Time Scale 2004, Cambridge University Press.
  • Varricchio, D. J. 2001. Late Cretaceous oviraptorosaur (Theropoda) dinosaurs from Montana. pp. 42–57 in D. H. Tanke and K. Carpenter (eds.), Mesozoic Vertebrate Life. Indiana University Press, Indianapolis, Indiana.
  • Weishampel, D.B.; Barrett, P.M.; Coria, R.A.; Le Loueff, J.; Xu, X.; Zhao, X.; Sahni, A.; Gomani, E.M.P. & Noto, C.N.; 2004: Dinosaur distribution, in: Weishampel, D.B.; Dodson, P. & Osmólska, H. (eds.): The Dinosauria, University of California Press, Berkeley (2nd ed.), ISBN 0-520-24209-2, pp 517–606.

Tài liệu tham khảo

WikiPedia: Tầng_Champagne http://stratigraphy.science.purdue.edu/charts/Time... http://www.foraminifera.eu/querydb.php?stage=Campa... http://pubs.usgs.gov/fs/2007/3015/fs2007-3015.pdf http://www.stratigraphy.org/ICSchart/ChronostratCh... http://www.stratigraphy.org/index.php/ics-chart-ti... https://web.archive.org/web/20040511104934/http://... https://web.archive.org/web/20100822060927/http://... https://stratigraphy.org/gssps/ https://commons.wikimedia.org/wiki/Category:Campan...