Anhuilong
Anhuilong (meaning "Anhui dragon") is a genus of mamenchisaurid dinosaur known from the Hongqin Formation of Anhui province, China. The genus contains a single species, Anhuilong diboensis.[1]
| Anhuilong Temporal range: Middle Jurassic, | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Sauropoda |
| Family: | †Mamenchisauridae |
| Genus: | †Anhuilong Ren et al., 2020 |
| Type species | |
| †Anhuilong diboensis Ren et al, 2020 | |
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]
Phylogeny
Ren et al. (2020)[nb 1] recovered Anhuilong as the sister taxon of Huangshanlong, with the closest relative of this clade being Omeisaurus tianfuensis. The results of their phylogenetic analysis are shown in the cladogram below:[1]
| Eusauropoda |
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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.
Notes
- Although the name first appeared online in 2018, it was only validly published in 2020.
