OntologyTerm pennaceous feather

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   May 11th, 2017 at 4:07pm

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definition 
Pennaceous feathers are also known as contour feathers. This type of feather is present in most modern birds, and has been shown in some species of maniraptoran dinosaurs. Pennaceous feathers have a central shaft (or rachis) with vanes spreading to either side. These vanes are composed of a high number of flattened barbs, that are connected to one another with barbules. The barbules are tiny strands that criss-cross on the flattened side s of the barbs. This forms a kind of miniature velcro-like mesh that holds all the barbs together, stabilizing the vanes. Flight feathers (remiges and rectrices) are specialized types of pennaceous feathers, adapted for high loadings and often strongly asymmetric for improved flight performance[WP]. (UBERON)
namespace 
http://purl.obolibrary.org/obo
parents 
  1. vaned feather
preferred_name 
pennaceous feather
references 
  1. None
slim_terms 
  1. integumental system
  2. ectoderm
source_ontologies 
  1. Uberon
term_id 
UBERON:0008297
term_name 
pennaceous feather
term_url 
http://purl.obolibrary.org/obo/UBERON_0008297