title: Dvuyakornaya Formation
text: # Dvuyakornaya Formation
  
  Dvuyakornaya Formation is a geological formation from the Cretaceous period in Crimea, south of Yalta. Remains found there include: ammonites, such as Berriasella, and brachiopods.
  
  ## Footnotes
  
  * ↑ V. V. Arkad’ev; A. A. Fedorova; Yu. N. Savel’eva & E. M. Tesakova. Biostratigraphy of Jurassic-Cretaceous boundary sediments in the Eastern Crimea.
  * ↑ Pylypenko D. Kyiv Ammonite [Ukrainian]. Archived from the original on 2012-03-27. Retrieved 2011-07-18.
  * ↑ T.N.Smirnova; D.I.McKinnon (1995). Apodosia, an enigmatic genus of micromorphic brachiopods from Cretaceous of Crimea and Jurassic of England.
  