Earth:Paso del Sapo Formation

Short description: Maastrichtian geologic formation of the Cañadón Asfalto Basin in Argentina

Paso del Sapo Formation Stratigraphic range: Maastrichtian ~70–66 Ma PreЄ Є O S D C P T J K Pg N ↓
Type	Geological formation
Underlies	La Colonia & Lefipán Formations
Overlies	Cerro Barcino Formation
Lithology
Primary	Siltstone
Location
Coordinates
Paleocoordinates	[ ⚑ ] 44.9°S 58.5°W / -44.9; -58.5
Region	Chubut Province
Country	Argentina
Extent	Cañadón Asfalto Basin
Type section
Named for	Paso del Sapo
Paso del Sapo Formation (Argentina)

The Paso del Sapo Formation is a Maastrichtian geologic formation of the Cañadón Asfalto Basin in Argentina . The siltstones of the formation were deposited in a lacustrine environment. Plesiosaur remains are among the fossils that have been recovered from its strata.

Fossil content

Geologic map of outcrops of the formation

• Aristonectes parvidens
• Ptychoceratodus sp.
• Flora

See also

• Plesiosaur stratigraphic distribution