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Nemicolopterus

Nemicolopterus
Temporal range: Early Cretaceous, 120 Ma
Nemicolopterus fossil cast.jpg
Cast of the holotype
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Suborder: Pterodactyloidea
Clade: Tapejaromorpha
Genus: Nemicolopterus
Wang et al., 2008
Type species
Nemicolopterus crypticus
Wang et al., 2008

Nemicolopterus crypticus was named as a genus of tapejaromorph pterosaur in 2008, based on a very small specimen described as the smallest known "adult" pterosaur to date. The generic name "Nemicolopterus" comes from the following Greek words: "Nemos" meaning "forest", "ikolos" meaning "dweller", and Latinised "pteron" meaning "wing". The specific name crypticus is from "kryptos", meaning "hidden". Thus "Nemicolopterus crypticus" means "Hidden flying forest dweller". It lived in the Jehol Biota 120 million years ago.

Restoration

The type fossil specimen of N. crypticus, catalog number IVPP V-14377, is housed in the collection of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, China. The fossil was collected from the Jiufotang Formation, which is of Aptian age (120 mya). It was discovered in the Luzhhouou locality of Yaolugou Town, Jianchang County, Huludao City, western Liaoning Province in northeastern China. It has a wingspan of slightly under 25 centimeters (10 in), making it smaller than all but a few specimens of hatchling pterosaurs. Wang et al. (2008), who originally described the specimen, concluded that it was immature, citing the amount of bone fusion and the ossification of the toes, gastralia, and sternum as indicating that it was a sub-adult rather than a hatchling. However, Darren Naish argued on his popular weblog that, due to the hypothesis that pterosaurs were highly precocial, bone fusion and ossification could have occurred very early in life, and that Nemicolopterus might in fact be a hatchling individual of the genus Sinopterus. This identification was formally presented in 2021 study, which found that Nemicolopterus fit into a growth series as a young juvenile or hatchling Sinopterus hatchling.

An analysis of pterosaur relationships by Andres and colleagues in 2014 found the specimen in a sister group relationship with "Sinopterus" gui.

See also


This page was last updated at 2022-05-17 14:14 UTC. Update now. View original page.

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