Pennaceous feather information

The pennaceous feather is a type of feather present in most modern birds and in some other species of maniraptoriform dinosaurs. A pennaceous feather has...

of feather: vaned feathers which cover the exterior of the body, and down feathers which are underneath the vaned feathers. The pennaceous feathers are...

history of feathers is now reasonably well-known. All feathered species had filamentaceous or plumaceous (downy) feathers, with pennaceous feathers found among...

Flight feathers (Pennae volatus) are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird;...

The down of birds is a layer of fine feathers found under the tougher exterior feathers. Very young birds are clad only in down. Powder down is a specialized...

six different types of feathers, which are flight, contour, down, semiplumes, filoplumes, and bristle feathers. Pennaceous feathers are relatively stiff...

distal pennulae), pennaceous feathers arising from the distal forelimbs and tail". Ancestral morphology relating to pennaceous feathers suggests that basal...

arm, indicating the former presence of pennaceous feather shafts, and a juvenile with impressions of feathers, which were up to five centimetres in length...

structural makeup of feathers (e.g., barbules, rachides and vanes); types of feathers (e.g., filoplume, pennaceous and plumulaceous feathers); and their growth...

into the original function of pennaceous feathers. An analysis of the phylogenetic distribution of pennaceous feathers on advanced maniraptoran theropod...

that every anchiornithid possessed advanced pennaceous feathers, there is still much variety in feathering between genera (or between individuals in the...

ornithomimids possessed the pennaceous feathers seen in Pennaraptora. Otherwise, a very ostrich-like plumage and feather range is known in one specimen...

relationship between birds and earlier dinosaurs. Microraptor had long pennaceous feathers that formed aerodynamic surfaces on the arms and tail but also on...

(164-152 million years ago). The name Pedopenna refers to the long pennaceous feathers on the metatarsus; daohugouensis refers to the locality of Daohugou...

this specimen provides the first direct evidence of well-developed pennaceous feathers in a large, non-flying dromaeosaur, raising the question of what...

showing that dromaeosaurids were covered in feathers. Some dromaeosaurid fossils preserve long, pennaceous feathers on the hands and arms (remiges) and tail...

feathers, powder down can give a metallic sheen to the plumage. A bird's plumage is primarily made up of two feather types: firm vaned or pennaceous feathers...

propose that such use of the pennaceous feathers might have contributed to the evolution of larger and stiffer feathers. A characterization of how number...

Maniraptoriformes is a clade which may have been united by the presence of pennaceous feathers and wings. This clade contains ornithomimosaurs and maniraptorans...

only album by Bleak, released in 1995 Parts besides the shaft in a pennaceous feather A plastic fin on an arrow D-alanine—D-serine ligase, an enzyme (VanE)...

that the original function of the pygostyle was not linked with pennaceous feathers. According to Zanno in 2010, Beipiaosaurus can be distinguished from...

specimen of Archaeopteryx provides insights into the evolution of pennaceous feathers". Nature. 511 (7507): 79–82. Bibcode:2014Natur.511...79F. doi:10...

spine or vertebral column. Rachis can also mean the central shaft of pennaceous feathers. In the gonad of the invertebrate nematode Caenorhabditis elegans...

that adapted to gliding by developing elongated scales and then pennaceous feathers. This hypothesis, however, is not supported by cladistic analysis...

supporting flight. A patch of pennaceous feathers is found running along its back, which was quite similar to the contour feathers of the body plumage of modern...

presence of prominent lacrimal crests, longer pennaceous feathers on the forelimbs and hindlimbs and tail feathers with large asymmetrical vanes. The skull...

specimen of Archaeopteryx provides insights into the evolution of pennaceous feathers". Nature. 511 (7507): 79–82. Bibcode:2014Natur.511...79F. doi:10...

symmetrical, pennaceous feathers that had vanes and barbs, measuring between 15–20 centimetres (5.9–7.9 inches) long. The primary feathers were arranged...

attachment points for strong pennacious feathers. While this is no evidence for the absence of pennaceous feathers, it indicates that they were not as strongly...

and forelimbs became longer. The integument evolved into complex, pennaceous feathers. The oldest known paravian (and probably the earliest avialan) fossils...