Information about Pennaceous Feather
Pennaceous feathers are also known as contour feathers and are present in most modern birds and in some species of maniraptoran dinosaurs.
Pennaceous feathers have a central shaft (or rachis) with vanes branching off to either side. These vanes are also called Barbs, that are connected to one another with Barbules, tiny strands that criss-cross to form a kind of mesh that holds all the barbs together and with each other. Remiges and rectrices are specialized types of pennaceous feathers.
Pennaceous feathers have a central shaft (or rachis) with vanes branching off to either side. These vanes are also called Barbs, that are connected to one another with Barbules, tiny strands that criss-cross to form a kind of mesh that holds all the barbs together and with each other. Remiges and rectrices are specialized types of pennaceous feathers.
Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds. They are the outstanding characteristic that distinguishes the Class Aves from all other living groups. Other Theropoda also had feathers (see Feathered dinosaurs).
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Aves
Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Linnaeus, 1758
Orders
About two dozen - see section below
Birds (class Aves) are bipedal, warm-blooded, egg-laying vertebrate animals.
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Maniraptora
Gauthier, 1986
Subclades
See text.
Maniraptora ("hand snatchers") is a clade of coelurosaurian dinosaurs used in phylogenetic taxonomy which covers the birds and the dinosaurs that were most closely related to them.
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Gauthier, 1986
Subclades
See text.
Maniraptora ("hand snatchers") is a clade of coelurosaurian dinosaurs used in phylogenetic taxonomy which covers the birds and the dinosaurs that were most closely related to them.
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Dinosauria *
Owen, 1842
Orders & Suborders
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Owen, 1842
Orders & Suborders
- Ornithischia
- Cerapoda
- Thyreophora
- Saurischia
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flight feather refers to any of the long stiff feathers on the wing or tail of a bird; those on the wing are called remiges (singular remex) while those on the tail are called rectrices (singular rectrix).
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flight feather refers to any of the long stiff feathers on the wing or tail of a bird; those on the wing are called remiges (singular remex) while those on the tail are called rectrices (singular rectrix).
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