Tacuarembó Formation

The Tacuarembó Formation is a Late Jurassic (Kimmeridgian) geologic formation of the eponymous department in northern Uruguay. The fluvial to lacustrine sandstones, siltstones and mudstones preserve ichnofossils, turtles, crocodylomorphs, fish and invertebrates (bivalves and gastropods).

Fossil content
The following fossils have been reported from the formation:
 * Reptiles
 * Meridiosaurus vallisparadisi
 * Tacuarembemys kusterae
 * cf. Ceratosaurus sp.
 * Coelurosauria indet.
 * Mesoeucrocodylia indet.
 * Testudines indet.
 * Tacuarembemys
 * Theropoda indet.
 * Torvosaurus sp. ("Torvosaurus ingens")
 * Tacuadactylus luciae
 * Fish
 * Arganodus tiguidiensis
 * Asiatoceratodus tiguidiensis
 * Mawsonia gigas
 * Neoceratodus africanus
 * Priohybodus arambourgi
 * Halecostomi indet.
 * Semionotiformes indet.
 * Bivalves
 * Diplodon sp.
 * Tacuaremboia caorsii
 * Gastropods
 * Viviparidae indet.
 * Ichnofossils
 * Ornithopoda indet.
 * Sauropoda indet.
 * Theropoda indet.