Doughnut Formation
Doughnut Formation er en Upper Mississippian[klargjør] geologisk enhet i det vestlige USA. Diskefossiler er blitt oppdaget i shale outcrops[klargjør] av denne formasjon i Dinosaur National Monument.[1]
Referanser
[rediger | rediger kilde]- ^ 22Bighorn Canyon National Recreation Area, Dinosaur National Monument and Buffalo National River (additional Mississippian fossil fish), Hunt, Santucci, og Kenworthy (2006); side 64.
Litteratur
[rediger | rediger kilde]- Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. «A preliminary inventory of fossil fish from National Park Service units.» in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63–69.
Autoritetsdata