Английская Википедия:Fasolasuchus
Шаблон:Short description Шаблон:Speciesbox
Fasolasuchus is an extinct genus of loricatan. Fossils have been found in the Los Colorados Formation of the Ischigualasto-Villa Unión Basin in northwestern Argentina that date back to the Norian stage of the Late Triassic, making it one of the last "rauisuchians" to have existed before the order became extinct at the end of the Triassic.[1][2]
Description
Fasolasuchus is likely the largest known "rauisuchian", with an estimated length of Шаблон:Convert[3] to Шаблон:Convert.[4][5] This would make Fasolasuchus the largest terrestrial predator to have ever existed save for large theropods, surpassing the Cenozoic Barinasuchus, the "rauisuchian" counterpart Saurosuchus at Шаблон:Convert, and many medium sized theropods as large as Ceratosaurus.[6][7][8] Like Saurosuchus, it had only a single row of caudal osteoderms, unusual among "rauisuchians".[9] It also had a hyposphene-hypantrum articulation that gave the vertebral column extra rigidity. This feature is also seen in several other "rauisuchians" such as Postosuchus as well as saurischian dinosaurs.[10][11]
Phylogeny
Cladogram after the analysis of Nesbitt (2011):[12] Шаблон:Clade
Paleobiology
A study on bone microstructure determined that Fasolasuchus had a relatively fast growth rate, similar to most other "rauisuchians", with the exception of Prestosuchus. The same study also determined that the specimen was somatically and skeletally mature, but it wasn't possible to determine sexual maturity: this may be due to taphonomic causes, however the bone cortex was mostly preserved and didn't show the changes in bone matrix or in vascularization that would be expected if the specimen was sexually mature. Alternatively, Fasolasuchus attained sexual maturity contemporaneously to or slightly later than somatic and skeletal maturity (although this growth pattern is today only found in birds, not crocodilians), or there were differences in the timing of maturity of different bones in the same individual, as reported in the tuatara and in some dinosaurs.[7]
References
External links
Шаблон:Pseudosuchia Шаблон:Taxonbar Шаблон:Portal bar
- ↑ Bonaparte, J. F. 1981. Description de "Fasolasuchus tenax" y su significado en la sistemarica y evolucion de los thecodontia. Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia" 3:55–101.
- ↑ Bonaparte, J. F. (1986). Locomotion in Rauisuchid Thecodonts. Journal of Vertebrate Paleontology 3(4):210-218.
- ↑ Nesbitt, S. J., Brusatte, S. L., Desojo, J. B., Liparini, A., França, M. A. G. D., Weinbaum, J. C., & Gower, D. J. (2013). Rauisuchia. Geological Society, London, Special Publications, 379(1), 241–274. https://doi.org/10.1144/SP379.1
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite book
- ↑ Шаблон:Cite journal
- ↑ 7,0 7,1 Шаблон:Cite journal
- ↑ Шаблон:Cite journal
- ↑ Sulej, T. (2005). A new rauisuchian reptile (Diapsida: Archosauria) from the Late Triassic of Poland. Journal of Vertebrate Paleontology 25(1):78–86.
- ↑ Weinbaum, J. C. and Hungerbüler, A. (2007). A revision of Poposaurus gracilis (Archosauria: Suchia) based on two new specimens from the Late Triassic of the southwestern U.S.A. Paläontologische Zeitschrift 81(2):131-145.
- ↑ Apesteguia, S. (2005). Evolution of the hyposphene-hypantrum complex within Sauropoda. In: Virginia Tidwell, Kenneth Carpenter, eds., Thunder-lizards: the Sauropodomorph dinosaurs. Bloomington. Indiana University Press. pp. 248-267.
- ↑ Шаблон:Cite journal
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- Paracrocodylomorphs
- Norian life
- Late Triassic reptiles of South America
- Triassic Argentina
- Fossils of Argentina
- Los Colorados Formation
- Fossil taxa described in 1981
- Taxa named by José Bonaparte
- Prehistoric pseudosuchian genera
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