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:Tacuarembó Formation at Fossilworks.org

Dinosaurs

Theropods Theropods of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Abelisauridae Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian A abelisaurid theropod CeratosaurusSoto & Perea, 2008 C. sp. Tacuarembó Department, Uruguay Kimmeridgian A ceratosaurid ceratosaur Coelurosauria Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian A coelurosaurian theropod Theropoda Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian An indeterminate theropod Torvosaurus T. sp. Tacuarembó Department, Uruguay Kimmeridgian A megalosaurine megalosaurid

Pterosaurs Pterosaurs of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Tacuadactylus T. luciae Tacuarembó Department, Uruguay Kimmeridgian A gnathosaurine ctenochasmatid

Crocodylomorphs Crocodylomorphs of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage MeridiosaurusFortier et al., 2011 M. vallisparadisi Tacuarembó Department, Uruguay Kimmeridgian A pholidosaurid mesoeucrocodylian Mesoeucrocodylia Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian An indeterminate mesoeucrocodylian

Turtles Turtles of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage TacuarembemysPerea et al., 2014 T. kusterae Tacuarembó Department, Uruguay Kimmeridgian An turtle Testudines Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian An turtle

Fish

Cartilaginous Fish Cartilaginous Fish of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage PriohybodusSoto et al., 2012 P. arambourgi Tacuarembó Department, Uruguay Kimmeridgian A hybodontid shark

Lobe-finned Fish Lobe-finned Fish of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage ArganodusSoto & Perea, 2010 A. tiguidiensis Tacuarembó Department, Uruguay Kimmeridgian A arganodontid lungfish Asiatoceratodus A. tiguidiensis Tacuarembó Department, Uruguay Kimmeridgian A asiatoceratodontid lungfish Mawsonia M. gigas Tacuarembó Department, Uruguay Kimmeridgian A mawsoniid coelacanth Neoceratodus N. africanus Tacuarembó Department, Uruguay Kimmeridgian A neoceratodontid lungfish

Ray-finned Fish Ray-finned Fish of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Halecostomi Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian An fish Semionotiformes Indet.Perea et al., 2003 Indeterminate Tacuarembó Department, Uruguay Kimmeridgian A semionotiform fish

Mollusks

Bivalves Bivalves of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Diplodon D. sp. Tacuarembó Department, Uruguay Kimmeridgian A hyriid mussel Tacuaremboia T. caorsii Tacuarembó Department, Uruguay Kimmeridgian A bivalve

Gastropods Gastropods of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Viviparidae Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian

Ichnofossils Ichnofossils of the Tacuarembó FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Ornithopoda Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian Sauropoda Indet. Indeterminate Tacuarembó Department, Uruguay Kimmeridgian Theropoda Indet.Mesa & Perea, 2015 Indeteminate Tacuarembó Department, Uruguay Kimmeridgian

See also List of fossiliferous stratigraphic units in Uruguay

References

Bibliography