Definition of Pennaceous. Meaning of Pennaceous. Synonyms of Pennaceous

- The pennaceous feather is a type of feather present in most modern birds and in some other species of maniraptoriform dinosaurs. A pennaceous feather...
- stage IV, differentiated distal and proximal barbules produce a closed, pennaceous vane (a contour feather). A closed vane develops when pennulae on the...
- hooked distal pennulae), pennaceous feathers arising from the distal forelimbs and tail". Ancestral morphology relating to pennaceous feathers suggests that...
- underneath the vaned feathers. The pennaceous feathers are vaned feathers. Also called contour feathers, pennaceous feathers arise from tracts and cover...
- dromaeosaurid, it would have had a large sickle-claw on the second toe and pennaceous feathers. Atrociraptor differs from its contemporary relatives in that...
- Down feathers lack the interlocking barbules of pennaceous feathers, making them very soft and fluffy....
- part they are firm and thus capable of supporting flight. A patch of pennaceous feathers is found running along its back, which was quite similar to the...
- spine or vertebral column. Rachis can also mean the central shaft of pennaceous feathers. In the gonad of the invertebrate nematode Caenorhabditis elegans...
- †Ornithomimidae (very ostrich-like dinosaurs) Maniraptora (dinosaurs with pennaceous feathers) †Alvarezsauroidea (small hunters with reduced forelimbs) †Alvarezsauridae...
- carbonized traces on the lower arm, indicating the former presence of pennaceous feather shafts, and a juvenile with impressions of feathers, which were...