// Workers AI · dad joke modeWhat did the Yanigua Formation say? "Rock" on.

Yanigua Formation
Stratigraphic range: Miocene
Type	Formation
Lithology
Primary	Claystone, marl
Other	Dominican amber
Location
Coordinates	18.8°N 69.7°W / 18.8; -69.7
Approximate paleocoordinates	18.7°N 68.6°W / 18.7; -68.6
Country	Dominican Republic
Type section
Named for	Yanigua mine
Yanigua Formation (the Dominican Republic)

The Yanigua Formation is a geologic formation in Dominican Republic. The lagoonal claystones and marls preserve fossils dating back to the Miocene period. The formation hosts Dominican amber.

Fossil content

See also: Dominican amber

• Aureofungus yaniguaensis, named after the formation
• Cephalotes alveolatus, C. caribicus, C. dieteri, C. hispaniolicus
• Enischnomyia stegosoma
• Mesembrinella caenozoica
• Vetufebrus ovatus
• ?Neocallichirus quisquellanus
• Portunus sp.
• Sebecidae Indet.

See also

• List of fossiliferous stratigraphic units in the Dominican Republic
  • La Toca Formation
  • El Mamey Formation
• Lagunitas Formation, Cuba

Further reading

• C. E. Schweitzer, M. Iturralde Vinent, J. L. Hetler and J. Vélez Juarbe. 2006. Oligocene and Miocene decapods (Thalassinidea and Brachyura) from the Caribbean. Annals of Carnegie Museum 75(2):111-136