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Drusilasaura

From Wikipedia, the free encyclopedia
Extinct genus of dinosaurs

Drusilasaura
Temporal range:Upper Cretaceous,Cenomanian–Turonian
Speculativelife reconstruction
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Clade:Dinosauria
Clade:Saurischia
Clade:Sauropodomorpha
Clade:Sauropoda
Clade:Macronaria
Clade:Titanosauria
Clade:Colossosauria
Genus:Drusilasaura
Navarreteet al.2011
Species:
D. deseadensis
Binomial name
Drusilasaura deseadensis
Navarreteet al. 2011

Drusilasaura is anextinctgenus of possiblelognkosauriantitanosaursauropoddinosaur which lived during the lateCretaceous (Cenomanian-Turonian stage) ofSanta Cruz Province of southernPatagonia,Argentina.

Drusilasaura is known from theholotypeMPM-PV 2097/1 to 2097/19, a partialskeleton including four dorsalvertebrae, a sacral vertebra, six caudal vertebrae, a leftscapula, dorsalrib fragments and other fragments. It was found by palaeontologistMarcelo Tejedor searching fossilmammals, in layers of the Upper Member of theBajo Barreal Formation, on the María Aike Ranch owned by the Ortiz de Zárate family. A team from theLaboratorio de Paleontología de Vertebrados of theUniversidad Nacional de la Patagonia San Juan Bosco subsequently collected the remains.[1]

Drusilasaura was named byCésar Navarrete,Gabriel Casal andRubén Martínez in2011. Thetype species isDrusilasaura deseadensis. The generic name honours Drusila Ortiz de Zárate, a young female member of the family who owns the ranch where the fossil was found, also making the name end in the feminine "-saura" instead of the masculine "-saurus". Thespecific name refers to theRío Deseado.[2]

Drusilasaura is a large sauropod. The length of the scapula is 143 centimetres, 30% longer than that ofMendozasaurus.[2]

Drusilasaura was assigned to theTitanosauridae by the describers and considered a possible member of theLognkosauria. If so, it would be the oldest known lognkosaurian.[2]

References

[edit]
  1. ^Navarrete, C.; Casal, G. & Martínez, R., (2008), "Nuevos materiales de Titanosauridae (Lognkosauria?) de la Formación Bajo Barreal, Cretácico Superior, Santa Cruz, Argentina". In:CONGRESO LATINOAMERICANO DE PALEONTOLOGÍA DE VERTEBRADOS, 3, 2008. Libro de Resúmenes p. 176
  2. ^abcCésar Navarrete, Gabriel Casal and Rubén Martínez (2011)."Drusilasaura deseadensis gen. et sp. nov., a new titanosaur (Dinosauria-Sauropoda), of the Bajo Barreal Formation, Upper Cretaceous of north of Santa Cruz, Argentina"(PDF).Revista Brasileira de Paleontologia.14 (1):1–14.doi:10.4072/rbp.2011.1.01.
Avemetatarsalia
Sauropodomorpha
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Saturnaliidae
Unaysauridae
Plateosauridae
Riojasauridae
Massospondylidae
Sauropodiformes
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Buriolestes schultzi

Pantydraco caducusMassospondylus carinatus

Jingshanosaurus xinwaensis
Lessemsauridae
Vulcanodontidae
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Mamenchisauridae
Turiasauria
Neosauropoda
Diplodocoidea
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Macronaria
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Dubious sauropods
Vulcanodon karibaensis

Barapasaurus tagoreiPatagosaurus fariasi

Turiasaurus riodevnesis
Rebbachisauridae
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Flagellicaudata
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Camarasauridae
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Wintonotitan wattsi
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Saltasauroidea
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Opisthocoelicaudiinae
Saltasaurinae
Dubious titanosaurs
Andesaurus delgadoi

Ampelosaurus atacisFutalognkosaurus dukei

Saltasaurus loricatus
Topics in sauropodomorph research
Drusilasaura


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