Paraprotopteryx

Paraprotopteryx
Temporal range: Early Cretaceous, 122 Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Clade: Avialae
Clade: Enantiornithes
Genus: Paraprotopteryx
Zheng, Zhang & Hou, 2007
Species:
P. gracilis
Binomial name
Paraprotopteryx gracilis
Zheng, Zhang & Hou, 2007

Paraprotopteryx is a genus of enantiornithean birds from the Mesozoic of China.[1]

In 2007, the type species Paraprotopeteryx gracilis was named and described by Zheng Xiaoting, Zhang Zihui and Hou Lianhai. The generic name means "near Protopteryx", in reference to a presumed similarity with that genus. The specific name is intended to mean "pretty".[1]

The holotype is specimen STM V001. It consists of a skeleton with skull on a plate and counterplate. The investigation preceding the description of the species proved that fossil traders had added the skull of a different individual to the torso. The description is based on the rump parts. Feathers have been preserved. The rump represents a subadult individual.[1]

Though initially reported to be from the Early Cretaceous Yixian Formation, later investigation showed that the fossil actually came from the Qiaotou Member of the Huajiying Formation of Fengning, Hebei Province, China, and is therefore of uncertain age. While much of the Huajiying Formation underlies the Yixian Formation,[2] Ji and colleagues suggested in 2008 that the Qiaotou Member correlates with the Dawangzhangzi beds of the Yixian Formation, dated to approximately 122 million years ago by Zhou Zhonghe in 2006.[3]

  1. ^ a b c Zheng, X. Zhang, Z. & Hou, L. (2007) A new enantiornithine bird with four long rectrices from the Early Cretaceous of northern Hebei, China. Acta Geologica Sinica 81(5):703-708.
  2. ^ Jin, Zhang, Li, Zhang, Li and Zhou (2008). "On the horizon of Protopteryx and the early vertebrate fossil assemblages of the Jehol Biota." Chinese Science Bulletin, 53(18): 2820-2827.
  3. ^ Zhou, Z. (2006). "Evolutionary radiation of the Jehol Biota: chronological and ecological perspectives." Geological Journal, 41: 377–393.