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BONATITAN

a herbivorous lithostrotian sauropod dinosaur from the Late Cretaceous of Argentina.
image
Pronunciation: bo-nuh-TIE-tuhn
Meaning: Bonaparte Giant
Author/s: Martinelli and Forasiepi (2004)
Synonyms: None known
First Discovery: Río Negro Province, Argentina
Chart Position: 446

Bonatitan reigi

(Reig's Boneparte giant)Etymology
Bonatitan is derived from "Bonaparte" (for Argentine paleontologist José Fernando Bonaparte) and the Greek "titan" (giant). The species epithet, reigi, honors Osvaldo Reig for his contribution to South American paleontology.
Discovery
The remains of Bonatitan were discovered in the lower member of the Allen Formation (Malargüe Group) at Bajo de Santa Rosa, Río Negro Province, Argentina, by José Fernando Bonaparte-directed Museo Argentino de Ciencias Naturales fieldtrips during the summers of 1991, 1992 and 1994.
The remains were originally split between two specimens: the holotype (MAGN-PVRN821), a partial skeleton including a complete brain-case, middle dorsal (back) vertebra, caudal (tail) vertebra and arch, left humerus (funny bone), a fragment of metacarpal, both femora (thighs), both tibiae (shins), left fibula (calfbone), left calcaneous (ankle), a metatarsal from the left foot, and some fragmentary elements, and a second specimen (MACN-PV RN 821), which is 20% smaller than the holotype and includes a complete braincase, a partial cervical (neck) vertebra, a left forearm (radius and ulna) a partial left leg (femur and tibia), calcaneous (ankle), metatarsal IV, a few incomplete chevrons and some unidentifiable scraps. However, during a restudy of these fossils in 2014, Salgado realised that they actually belonged to five individuals with the original holotype accounting for three. A braincase was designated as the new type specimen.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian-Maastrichtian
Age range: 73-67 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Herbivore
References
• Martinelli, A. and Forasiepi, A.M. (2004) "Late Cretaceous vertebrates from Bajo de Santa Rosa (Allen Formation), Rio Negro province, Argentina, with the description of a new sauropod dinosaur (Titanosauridae)". Revista del Museo Argentino de Ciencias Naturales, Nueva Serie 6(2)
• Ariana Paulina Carabajal (2012) "Neuroanatomy of Titanosaurid Dinosaurs From the Upper Cretaceous of Patagonia, With Comments on Endocranial Variability Within Sauropoda".
• Salgado L., Gallina P.A. and Paulina Carabajal A. (2014) "Redescription of Bonatitan reigi (Sauropoda: Titanosauria), from the Campanian–Maastrichtian of the Río Negro Province (Argentina)". Historical Biology: An International Journal of Paleobiology Volume 27, Issue 5
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To cite this page:
Atkinson, L. "BONATITAN :: from DinoChecker's dinosaur archive".
›. Web access: 18th Dec 2017.
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