Eosinopteryx brevipenna. New Word Suggestion. A newly discovered species of flightless dinosaur bird from the Jurassic period which was less than a foot long. Reconstruction of Eosinopteryx brevipenna, a new theropod dinosaur with reduced plumage from the Middle/Late Jurassic of north-eastern. A compilation of the best Eosinopteryx illustrations, facts, fossils, and maps. Source: Save.

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Eosinopteryx brevipenna Pascal Godefroit et al. Huxley’s near-bird” in Latin. The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful nomen dubiumor were not formally published nomen nudumas well as junior synonyms of more established names, and genera that are no longer considered dinosaurs.

It is known from a single specimen belonging to the species Zhenyuanlong suni Chinese: Though initially classified as a troodontid[1] a more comprehensive analyses of its relationships have found it to be either a primitive paravian or an eosinopterhx. Xiaotingia topic Xiaotingia is a genus of anchiornithid theropod dinosaur from early Late Jurassic eosinoppteryx of western Liaoning, China, containing a single species, Xiaotingia zhengi.

This birdlike dinosaur’s plumage was much more reduced compared with the feathers on some of its contemporaries, which suggests that feathering was already diversified by wosinopteryx Late Jurassic, adapted to different ecological niches and purposes, the researchers said.

Tiny Feathered Dinosaur Discovered

Member feedback about Zhenyuanlong: Member feedback about in archosaur paleontology: The genus Anchiornis contains only the type species Anchiornis huxleyi, named for its similarity to modern birds. Member feedback about List of Asian dinosaurs: A researcher from the University of Southampton said the discovery of Eosinopteryx suggests “that the origin of flight was much more complex than previously thought”.

However, feather-like integument has also been discovered on at least three ornithischians, suggesting th Eosinopteryx is an extinct genus of theropod dinosaurs known the late Jurassic period of China. Feathered dinosaur topic Fossil of Microraptor gui includes impressions of feathered wings see arrows Since scientific research began on dinosaurs in the early s, they were generally believed to be closely related to modern reptiles such as lizards.


It is from the early Cretaceous Period. Cretaceous dinosaurs Revolvy Brain revolvybrain. Member feedback about Troodontidae: It lived during the Aptian age of the early Cretaceous period, approximately million years ago. The genus Aurornis contains a single known species, Aurornis xui. Dromaeosaurs Revolvy Brain revolvybrain.

Jurassic Dino-Bird Discovered, Named Eosinopteryx

His specific research interests include the phylogenetics of birds, the functional morphology of aves and non-avian dinosaurs, and the palaeoenvironments of fossil vertebrates. Xu Xing, Mark Norell, and colleagues authored the study describing them, finding the specimens to represent a new taxon, for which was chosen the binomial Sinovenator changii.

Eosinopteryx brevipenna is known from a single fossil specimen representing the nearly complete skeleton of a subadult or adult individual. These traits included its numerous, small, and closely packed teeth, as well as the vertebrae towards the end of its tail having shallow grooves in place of neural spines on their top surfaces. By using this site, you agree to the Terms of Use and Privacy Policy. The discovery of Jianianhualong supports the notion that asymmetrical feathers appeared early in the evolutionary history of the Paraves.

Unusually, the tail of the only known fossil does not show signs of the presence of complex vaned feathers rectricesand the lower tarsals and feet appear to have been featherless, unlike many related species with “hind wings” on the lower legs and feet. Researchers have discovered a new species of feathered but flightless little dinosaur from the Jurassic period.

Characteristics Microraptor specimen with feather impressions Maniraptorans are characterized by long arms and three-fingered hands though reduced or fused in some lineagesas well as a “half-moon shaped” semi-lunate bone in the wrist carpus. Many listed names have been reclassified as everything from birds to crocodilians to petrified wood.

Despite aerodynamic differences from the flight feathers of modern birds, the feathers in the tail vane of Jianianhualong could have functioned in drag reduction whilst the animal was moving. The specific name brevipenna from the Latin brevis”short”, and penna”feather” refers to the reduced plumage preserved in the type specimenYFGP-T The tail was very short compared to most troodontids and dromaeosaurids and also unlike members of those groups, the feet and toes were very slender, lacking highly curved claws for predation or climbing.


Unlike most troodontids, the snout was very short, shorter than the diameter of the eye socket. Paraves topic Paraves are a widespread group of theropod dinosaurs that originated in the Late Jurassic period.

Fossilworks: Eosinopteryx brevipenna

Anchiornithidae topic Anchiornithidae “near birds” is a family of eumaniraptorans which could be the basalmost family of birds in the general sense in the clade Avialae.

Nature Communications 4, eosinoptefyx number: The word “dinosaur” itself, coined in by paleontologist Richard Owen, comes from the Greek for “fearsome lizard”.

The generic name was derived rbevipenna the Latin word Sinae, for China, and Venator, or “hunter”. This list of dinosaurs is a comprehensive listing of all genera that have ever been included in the superorder Dinosauria, excluding class Aves birds, both living and those known only from fossils and purely vernacular terms. Serikornis is a genus of small, feathered anchiornithid[1] dinosaur from the Upper Jurassic Tiaojishan Formation of Liaoning, China.

Birds have wings which are more or less developed depending on the species; the only known groups without wings are the extinct moa and elephant birds. Member feedback about Euavialae: This group was named by Thomas Holtz, who defined it as “the most recent common ancestor of Ornithomimus and birds, and all descendants of that common ancestor.

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