Laredo Formation

Laredo Formation Stratigraphic range: Lutetian (Uintan) ~48–42 Ma PreЄ Є O S D C P T J K Pg N
Type	Formation
Unit of	Claiborne Group
Lithology
Primary	Sandstone
Other	Shale, limestone
Location
Coordinates	[ ⚑ ] : 26°24′N 99°12′W / 26.4°N 99.2°W / 26.4; -99.2
Paleocoordinates	[ ⚑ ] 28°24′N 89°36′W / 28.4°N 89.6°W / 28.4; -89.6
Region	Texas Nuevo León, Tamaulipas
Country	United States  Mexico
Laredo Formation (Mexico)

The Laredo Formation is a geologic formation and Lagerstätte^[1] in Texas , United States, and Nuevo León and Tamaulipas, Mexico. It preserves fossils dating back to the Lutetian stage of the Eocene period.^[2] Among many other fossils, the formation has provided invertebrates, vertebrates, leaves, pollen and spores and fossil wood of the brackish water palm Nypa sp.^[1]

• List of fossiliferous stratigraphic units in Mexico
• List of fossiliferous stratigraphic units in Texas
• Paleontology in Texas

• Reitner, Joachim; Yang Qun; Wang Yongdong, and Mike Reich. 2013. Palaeobiology and Geobiology of Fossil Lagerstätten through Earth History, 1-218. Universitätsverlag Göttingen. Accessed 2020-09-15. ISBN 978-3-86395-135-1

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