TheSanta Lucía Formation is aMaastrichtian toPaleocene (Danian ) geologicformation inBolivia . Fossilornithopod tracks have been reported from the Cretaceous lower part of the formation.[ 1] type formation of theTiupampan South American land mammal age .
Paleogeography of Northern South Americaby Ron Blakey The Santa Lucía Formation is a formation of thePotosí Basin in Bolivia dated to thePaleocene , 60 to 58.2 Ma.[ 2] El Molino Formation and is overlain by theCayara Formation . The formation is laterally equivalent with theMaíz Gordo Formation of northernArgentina ,[ 3] Salamanca Formation of Argentina, theMaria Farinha Formation of theParaíba Basin in northernBrazil and theGuaduas Formation of theAltiplano Cundiboyacense andfossiliferous Cerrejón Formation of theCesar-Ranchería Basin ,Colombia .
The 381.35 metres (1,251.1 ft) thick formation consists of reddish sandyshales ,marls andsiltstones deposited in afluvial tolacustrine environment .[ 4] [ 5]
Paleontological significance [ edit ] The oldest known "condylarth" fauna of the Tertiary of South America comes from basal Paleocene strata of the Santa Lucía Formation at Tiupampa. It includes five genera and seven species:Molinodus suarez Tiuclaenus minutus T. cotasi T. robustus Pucanodus gagnieri Andinodus boliviensis Simoclaenus sylvaticus [ 6] South American land mammal age giving rise to theTiupampan .
At the Parotani tracksite, poorly preservedichnofossils were found in the Maastrichtian part of the formation, left possibly by acarnosaur .[ 7]
Thefossiliferous formation has provided the following fossils:
Group Fossils Notes Mammals Alcidedorbignya inopinata Allqokirus australis Andinodelphys cochabambensis Andinodus boliviensis Incadelphys antiquus Jaskhadelphys minutus Khasia cordillerensis Kollpania tiupampina Mayulestes ferox Mizquedelphys pilpinensis Molinodus suarezi Peradectes austrinum Pucadelphys andinus Pucanodus gagnieri Roberthoffstetteria nationalgeographica Simoclaenus sylvaticus Szalinia gracilis Tiulordia floresi Tiuclaenus minutus Cimolestes sp. Didelphoidea indet. ,Henricosborniidae orOldfieldthomasiidae ,Proteutheria indet. Reptiles & amphibians Coniophis sp. Cynodontosuchus cf. rothi Estesiella boliviensis Kataria anisodonta Lapparentemys vilavilensis Podocnemis ?brasiliensis Roxochelys cf. vilavilensis Zulmasuchus querejazus Aniliidae ,Boidae ,?Madtsoiidae ,Tropidophiidae ,Gymnophiona ,Carnosauria indet.,Ornithopoda indet.Fishes Andinichthys bolivianensis Dajetella sudamericana Enchodus oliveirai Gasteroclupea branisai Hoffstetterichthys pucai Incaichthys suarezi Lepidosiren cf. paradoxa Phareodusichthys tavernei Eohiodon sp. Hoplias sp. Lepisosteus sp. Miletes sp. Percichthys sp. Phareodus sp. Rhineastes sp. Rhodsia sp. Ictaluridae indet.
^ Weishampel, et al., 2004, pp.517-607 ^ Sempere et al., 1997, p.709 ^ Sempere et al., 1997, p.712 ^ Jiménez, 2012, p.11 ^ Renner & Velasco, 2000, p.25 ^ De Muizon & Cifelli, 2000, p.47 ^ Leonardi, 1994, p.40 ^a b c Gayet et al., 1991, p.403 ^a b c Tiupampa 1 atFossilworks .org^ Buffetaut & Marshall, 1991 ^ Rage, 1991a, pp.499-501 ^ Rage, 1991b, pp.503-508 ^ Vila Vila atFossilworks .orgBuffetaut, É. ; Marshall, L.G. (1991),A new crocodilian, Sebecus querejazus, nov. sp. (Mesosuchia, Sebecidae) from the Santa Lucía Formation (Early Paleocene) at Vila Vila, Southern Bolivia , Revista Técnica de YPFB, pp. 545– 557Gaffney, Eugene S.; Meylan, Peter A.; Wood, Roger C.; Simons, Elwyn; De Almeida Campos, Diogenes (2011),"Evolution of the side-necked turtles: the family Podocnemididae" (PDF) ,AMNH Bulletin 350 :1– 237, retrieved2017-08-15 Gayet, Mireille; Marshall, Larry G.; Sempere, Thierry (1991),"The Mesozoic and Paleocene vertebrates of Bolivia and their stratigraphic context: a review" ,Revista técnica de YPFB ,12 :393– 433, retrieved2017-08-15 Jiménez, Grisel (2012),Estratigrafía, facies y ambientes evolutivos de depósito del Paleógeno Inferior: Formación Santa Lucía (Sinclinal de Miraflores - Sección Cayara, Potosí) (PDF) , ., pp. 1– 23, retrieved2017-08-15 Leonardi, Giuseppe (1994),Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America 1– 248, retrieved2019-03-25 De Muizon, C.; Cifelli, R.L. (2000),"The "condylarths" (archaic Ungulata, Mammalia) from the early Palaeocene of Tiupampa (Bolivia): implications on the origin of the South American ungulates" (PDF) ,Geodiversitas 22 :47– 150, retrieved2019-02-08 Rage, J.C (1991a),"Gymnophionan Amphibia from the early Paleocene (Santa Lucía Formation) of Tiupampa (Bolivia). The oldest known Gymnophiona" ,Revista técnica de YPFB ,12 :499– 501, retrieved2017-08-15 Rage, J.C (1991b),"Squamate Reptiles from the early Paleocene of Tiupampa area (Santa Lucía Formation), Bolivia" ,Revista técnica de YPFB ,12 :503– 508, retrieved2017-08-15 Renner, Sven; Velasco, Carlos (2000),"Geología e hidrogeología del Valle Central de Cochabamba" (PDF) ,Boletín del Servicio Nacional de Geología y Minería ,34 :1– 113, retrieved2017-08-15 Sempere, Thierry; Butler, R.F.; Richards, D.R.; Marshall, L.G.; Sharp, W.; Swisher, C.C. (1997),"Stratigraphy and chronology of Upper Cretaceous-lower Paleogene strata in Bolivia and northwest Argentina" (PDF) ,GSA Bulletin 109 (6):709– 727,Bibcode :1997GSAB..109..709S ,doi :10.1130/0016-7606(1997)109<0709:SACOUC>2.3.CO;2 , retrieved2017-08-15 Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (1991),The Dinosauria , Berkeley: University of California Press, pp. 1– 861 {{citation }}: CS1 maint: publisher location (link )
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