Anhuilong

Anhuilong; Temporal range: Middle Jurassic, 176–162 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Suborder:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Eusauropoda
Family:	†Mamenchisauridae
Genus:	†Anhuilong; Ren et al., 2020
Type species
	†Anhuilong diboensis; Ren et al, 2020

Anhuilong (meaning "Anhui dragon") is a genus of mamenchisaurid dinosaur found in the Anhui province of China. It contains a single species, Anhuilong diboensis. Ren et al. (2020) recover Anhuilong as the sister taxon of Huangshanlong, with the closest relative to this clade being Omeisaurus tianfuensis.[1]

Discovery and naming

Anhuilong is known from the holotype AGB 5822, a forelimb consisting of a left humerus, ulna, and radius. It is distinguished by the following combination of features: low ratios of the average of the greatest widths of the proximal end, mid-shaft and distal end of the humerus/length of the humerus, total length of ulna to humerus and total length of radius to humerus; the lateral edge of the deltopectoral crest directs caudolaterally, the lateral accessory condyle on the craniodistal edge of humerus is more robust than the medial one, and the cross-sectional shape of the ulna at mid-shaft is elliptical with highest ratio of transverse to craniocaudal diameter among mamenchisaurids.[1]

References

Ren, Xin-Xin; Huang, Jian-Dong; You, Hai-Lu (2020-05-27). "The second mamenchisaurid dinosaur from the Middle Jurassic of Eastern China". Historical Biology. 32 (5): 602–610. doi:10.1080/08912963.2018.1515935. ISSN 0891-2963.

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[:0-1] Ren, Xin-Xin; Huang, Jian-Dong; You, Hai-Lu (2020-05-27). "The second mamenchisaurid dinosaur from the Middle Jurassic of Eastern China". Historical Biology. 32 (5): 602–610. doi:10.1080/08912963.2018.1515935. ISSN 0891-2963.