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]

Laredo Formation
Stratigraphic range: Lutetian (Uintan)
~48–42 Ma
TypeFormation
Unit ofClaiborne Group
Lithology
PrimarySandstone
OtherShale, limestone
Location
Coordinates26°24′N 99°12′W / 26.4°N 99.2°W / 26.4; -99.2
Approximate paleocoordinates28°24′N 89°36′W / 28.4°N 89.6°W / 28.4; -89.6
RegionTexas
Nuevo León, Tamaulipas
Country United States
 Mexico
Laredo Formation is located in Mexico
Laredo Formation
Laredo Formation (Mexico)

See also

edit

References

edit
  1. ^ a b Garten & Gee, in Reitner et al., 2013, p.57
  2. ^ Laredo Formation at Fossilworks.org

Bibliography

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