Wulong bohaiensis

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Wulong bohaiensis
Temporal range:
Ma
Skeleton of the holotype
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Family: Dromaeosauridae
Clade: Microraptoria
Genus: Wulong
Poust et al., 2020
Species:
W. bohaiensis
Binomial name
Wulong bohaiensis
Poust et al., 2020

Wulong (meaning "dancing dragon") is a genus of microraptorine dromaeosaurid dinosaurs from the Early Cretaceous (Aptian) Jiufotang Formation of China. The genus includes a single species, Wulong bohaiensis. The skeletal remains, which include preserved feathers, represent a juvenile.[1][2][3]

Discovery

Diagram of the preserved plumage

The Wulong

nomen ex dissertatione
.

In 2020, Poust alongside his former advisor David Varricchio from

Bohai Strait (渤海, Bó Hǎi).[1]

Description

The proportionally long tail of Wulong is about twice as long as its body. The skeleton has hollow bones. The remains belong to a juvenile individual, about one-year-old.[1][5]

The long, narrow skull of Wulong is large in relation to the body. It is 1.15 times the length of the

jugal process is 5 mm long.[1]

Feathers and colouration

Life restoration
with colouration inferred from the holotype

The specimen displays soft tissue preservation, including feathered wings on its arms and legs, and two long plumes at the end of the tail, similar to the extinct Microraptor and Confuciusornis and the extant quetzal. However unlike the related Microraptor, there is no evidence that Wulong had a fan of feathers at the end of the tail. The long pair tail feathers present in an immature individual suggests that they were likely not used for mating, and possibly not other ornamental purposes.[1]

In 2023, Croudace and colleagues described the likely

sexual signalling, but also intraspecific signalling for communication.[5]

Classification

Poust et al. (2020) recovered Wulong as a

phylogenetic analyses are shown in the cladogram below:[1]

Microraptorinae

See also

References