Gatuncillo Formation
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Not to be confused with Gatún Formation.
The Gatuncillo Formation (Tgo)[1] is a geologic formation in central Panama. The formation is exposed in the Panama Canal Zone and surrounding areas. It preserves fossils dating back to the Middle to Late Eocene period.[2]
Quick Facts Type, Underlies ...
Gatuncillo Formation | |
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Stratigraphic range: Middle-Late Eocene | |
Type | Formation |
Underlies | Caimito, Bohío & Panama Formations |
Overlies | Cretaceous basement |
Thickness | 150–800 m (490–2,620 ft) |
Lithology | |
Primary | Mudstone, siltstone |
Other | Limestone, sandstone, conglomerate |
Location | |
Coordinates | 9.3°N 79.7°W / 9.3; -79.7 |
Approximate paleocoordinates | 6.8°N 77.3°W / 6.8; -77.3 |
Region | Panamá Province |
Country | Panama |
Extent | Panama Basin |
Type section | |
Named for | Gatuncillo River |
Named by | Thompson |
Year defined | 1944 |
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