Bukachacha Formation

The Bukachacha Formation is a geological formation in Zabaykalsky Krai, Russia dating to the Early Cretaceous (Barremian). The tuffaceous mudstones of the formation were deposited in a lacustrine environment.

Fossil content

The formation has provided fossil insects and trees:

• Coleoptera
• Coptoclavidae
• Stygeonectes jurassicus
• Trichoptera
• Phryganeidae
• Proagrypnia sp.
• Ephemerida
• Hexagenitidae
• Ephemeropsis trisetalis

• Baierella sp.
• Pseudotorellia sp.
• Sphenobaiera sp.
• Araucariaceae indet.
• Cheirolepidiaceae indet.
• Cyatheaceae indet.
• Gleicheniaceae indet.
• Miroviaceae indet.
• Osmundaceae indet.
• Pinaceae indet.
• Schizaeaceae indet.
• Taxodiaceae indet.

See also

• List of fossiliferous stratigraphic units in Russia
• Batylykh Formation, contemporaneous fossiliferous formation of Buryatia

References

Bibliography