| 词条 | Lessemsaurus |
| 释义 |
| name = Lessemsaurus | fossil_range = Norian ~{{fossilrange|228|208.5}} | image = Lessemsaurus Senckenberg.jpg | genus = Lessemsaurus | parent_authority = Bonaparte 1999 | species = sauropoides | authority = Bonaparte 1999 }} Lessemsaurus is an extinct genus of sauropod dinosaur belonging to Lessemsauridae. Naming and descriptionThe type species, L. sauropoides, was formally described by José Fernando Bonaparte in 1999 in honor of Don Lessem, a writer of popular science books. It was found in the Los Colorados Formation of the Ischigualasto-Villa Unión Basin in La Rioja Province, Argentina.[1] This dinosaur was around {{convert|9|m|ft}} long and was discovered in strata dating to the Norian stage, around 210 million years ago.[2][3] ClassificationIn 2018, Apaldetti et al. recovered it as part of a clade they named Lessemsauridae, after Lessemsaurus. Their cladogram is reproduced below:[4] {{Clade |style=font-size:85%; line-height:85%|label1=Sauropodiformes |1={{clade |1=Mussaurus |2={{clade |1=Aardonyx |2=Sefapanosaurus |3={{clade |1={{clade |label1=Melanorosauridae |1={{clade |1=Camelotia |2=Melanorosaurus }} }} |2={{clade |label1=Sauropoda |1={{clade |1={{clade |label1=Lessemsauridae |1={{clade |1=Antetonitrus |2={{clade |1=Ingentia |2=Lessemsaurus }} }} }} |2={{clade |1=Blikanasaurus |2={{clade |1=Gongxianosaurus |2={{clade |1=Pulanesaura |2=Gravisauria }} }} }} }} }} }} }} }} }} References1. ^Weishampel, David B; et al., 2004. "Dinosaur distribution (Late Triassic, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 527–528. {{ISBN|0-520-24209-2}}. 2. ^{{cite journal|url=http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2480|title=Evolución de las vértebras presacras en Sauropodomorpha|author=Bonaparte, J. F.|authorlink=José Bonaparte|year= 1999|journal=Ameghiniana|volume=36|pages= 115–187}} 3. ^{{cite journal|author1=Pol, D. |author2=Powell, J. E. |year=2007|url=https://www.researchgate.net/publication/230213248_New_information_on_Lessemsaurus_sauropoides_Dinosauria_Sauropodomorpha_from_the_Upper_Triassic_of_Argentina|title= New information on Lessemsaurus sauropoides (Dinosauria: Sauropodomorpha) from the Upper Triassic of Argentina|journal=Special Papers in Palaeontology|volume=77|pages=223–243}} 4. ^{{Cite journal |last=Apaldetti |last2=Martínez |first2=Ricardo N. |last3=Cerda |first3=Ignatio A. |last4=Pol |first4=Diego |last5=Alcober |first5=Oscar |year=2018 |title=An early trend towards gigantism in Triassic sauropodomorph dinosaurs |url=https://www.nature.com/articles/s41559-018-0599-y |journal=Nature Ecology & Evolution |doi=10.1038/s41559-018-0599-y}} External links
9 : Sauropods|Dinosaur genera|Norian life|Late Triassic dinosaurs of South America|Fossils of Argentina|Triassic Argentina|Los Colorados Formation|Fossil taxa described in 1999|Taxa named by José Bonaparte |
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