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. Theropoda indet. Torvosaurus sp. ("Torvosaurus ingens") Tacuadactylus luciae Fish Arganodus tiguidiensis Asiatoceratodus cf. tiguidiensis Mawsonia gigas Neoceratodus africanus Priohybodus arambourgi Halecostomi indet. Semionotiformes indet. Bivalves Diplodon sp. Gastropods Viviparidae indet. Ichnofossils Ornithopoda indet. Sauropoda indet. Theropoda indet. See also List of fossiliferous stratigraphic units in Uruguay References Bibliography Geologic formations of Uruguay Jurassic System of South America Jurassic Uruguay Kimmeridgian Stage Sandstone formations Mudstone formations Siltstone formations Fluvial deposits Lacustrine deposits Ichnofossiliferous formations Formations Fossiliferous stratigraphic units of South America Paleontology in Uruguay Formations