Temporal range: Middle Jurassic
Ren et al., 2018
Ren et al, 2018
Anhuilong is a genus of mamenchisaurid dinosaur found in the Anhui province of China. It contains a single species, Anhuilong diboensis. Ren et al. (2018) recover Anhuilong as the sister taxon of Huangshanlong, with the closest relative to this clade being Omeisaurus tianfuensis.
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.
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