Analong (meaning "Ana dragon") is a genus of mamenchisaurid sauropod dinosaur from the Chuanjie Formation in Yunnan, China. The type and only species is Analong chuanjieensis.[1]

Analong
Temporal range: Middle Jurassic, 170–168 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Sauropodomorpha
Clade: Sauropoda
Family: Mamenchisauridae
Genus: Analong
Ren et al. 2020
Type species
Analong chuanjieensis
Ren et al. 2020

Discovery and naming

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The holotype, LFGT LCD 9701–1, found in 1995, was in 2011 assigned to the contemporary genus Chuanjiesaurus.[2] However, in 2020, Ren et al. noted several differences between it and the holotype of Chuanjiesaurus, and so assigned it to a new taxon, Analong chuanjieensis. The binomial name means "Ana dragon from Chuanjie," where Ana is the village in Yunnan Province where the holotype was found.[1]

Classification

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In a phylogenetic analysis, Analong was found by its describers to be the earliest diverging mamenchisaurid. Their resulting phylogenetic tree of Mamenchisauridae is reproduced below.[1]

Mamenchisauridae

References

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  1. ^ a b c Xin-Xin Ren; Toru Sekiya; Tao Wang; Zhi-Wen Yang; Hai-Lu You (2020). "A revision of the referred specimen of Chuanjiesaurus anaensis Fang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China". Historical Biology: An International Journal of Paleobiology. 33 (9): 1872–1887. doi:10.1080/08912963.2020.1747450. S2CID 216283529.
  2. ^ Sekiya, T. (2011). "Re-examination of Chuanjiesaurus anaensis (Dinosauria: Sauropoda) from the Middle Jurassic Chuanjie Formation, Lufeng County, Yunnan Province, southwest China" (PDF). Memoir of the Fukui Prefectural Dinosaur Museum. 10: 1–54.