Euskelosaurus

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Euskelosaurus
Temporal range: Late Triassic
Euskelosaurus africanus ischia.jpg
E. africanus ishia
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Family: Plateosauridae
Genus: Euskelosaurus
Species:
E. browni
Binomial name
Euskelosaurus browni

Euskelosaurus browni ("good leg lizard") is a semi-bipedal plateosaurid sauropodomorph dinosaur from the early Triassic of South Africa and Lesotho. Fossils have only been recovered from the lower Elliot Formation in South Africa and Lesotho,[1] and in one locality in Zimbabwe.[2]

History of Discovery[edit]

In 1863, Alfred Brown recovered fossil material consisting of limb bones and vertebrae, in the lower Elliot Formation in the southeastern Free State. In 1866, Thomas Henry Huxley first described Euskeleosaurus from Brown's fossil material, and named the holotype specimen Euskeleosaurus brownii after Brown.[3] Harry Seeley later described Euskeleosaurus in 1894,[4] as did Friedrich von Huene in 1902. Since then, other researchers, including Robert Broom, have mentioned Euskeleosaurus in their papers.[5][6][7][8][9]

Description[edit]

Euskelosaurus is considered to have been a large, robust member of the sauropodomorph clade. Estimates from the existing fossil material measure this dinosaur at about 10m in length. Its bones are robust and it had a graviportal limb arrangement, a key character trait of basal sauropodomorphs.[10][11][12]

Classification[edit]

While paleontologists currently consider Euskelosaurus a basal plateosaurid sauropodomorph, many paleontologists consider Euskelosaurus a “waste-basket” taxon.[citation needed] Its phylogenetic relationships are poorly understood and warrant further study.[citation needed]

References[edit]

  1. ^ Gauffre, Francois-Xavier (1993). "Biochronostratigraphy of the Lower Elliot Formation, southern Africa) and preliminary results on the Maphutseng dinosaur. Saurischia: Prosauropoda) from the same Formation of Lesotho". In Lucas, Spencer G.; Morales, Michael (eds.). The Nonmarine Triassic: Bulletin 3. pp. 147–9.
  2. ^ Cooper, M.R. (1980). "The first record of the prosauropod dinosaur Euskelosaurus from Zimbabwe". Arnoldia Zimbabwe. 9 (3): 1–17.
  3. ^ Huxley, TH (1866). "On the remains of large dinosaurian reptiles from the Stormberg mountains, South Africa". Geological Magazine. 3: 563–4.
  4. ^ Seeley, H.G. (1894). "XLI.—On Euskelesaurus Brownii (Huxley)". Annals and Magazine of Natural History. 14 (83): 317–340. doi:10.1080/00222939408677811.
  5. ^ Broom, R. (1911). "On the dinosaurs of the Stormberg, South Africa". Annals of the South African Museum. 7: 291–308.
  6. ^ Van Heerden, J. (1979). The morphology and taxonomy of Euskelosaurus (Reptilia: Saurischia: Late Triassic) from South Africa. Nasionale Museum. OCLC 10876430.[page needed]
  7. ^ Welman, Johann (1999). "The basicranium of a basal prosauropod from the Euskelosaurus range zone and thoughts on the origin of dinosaurs". Journal of African Earth Sciences. 29 (1): 227–232. Bibcode:1999JAfES..29..227W. doi:10.1016/S0899-5362(99)00092-5.
  8. ^ Yates, A.M. (2004). The death of a dinosaur: dismembering Euskelosaurus. Geoscience Africa. p. 715. ISBN 978-0-620-32470-0.
  9. ^ Galton, Peter M. (1985). "Notes on the Melanorosauridae, a family of large Prosauropod Dinosaurs (Saurischia: Sauropodomorpha)". Geobios. 18 (5): 671–676. doi:10.1016/S0016-6995(85)80065-6.
  10. ^ Durand, J.F. (2001). "The oldest juvenile dinosaurs from Africa". Journal of African Earth Sciences. 33 (3–4): 597–603. Bibcode:2001JAfES..33..597D. doi:10.1016/S0899-5362(01)00079-3.
  11. ^ McPhee, Blair Wayne (2016). The South African Mesozoic: advances in our understanding of the evolution, palaeobiogeography, and palaeoecology of sauropodomorph dinosaurs (Thesis). hdl:10539/21644.
  12. ^ McPhee, Blair W.; Choiniere, Jonah N. (2016). "A hyper-robust sauropodomorph dinosaur ilium from the Upper Triassic–Lower Jurassic Elliot Formation of South Africa: Implications for the functional diversity of basal Sauropodomorpha". Journal of African Earth Sciences. 123: 177–184. Bibcode:2016JAfES.123..177M. doi:10.1016/j.jafrearsci.2016.08.004.