BL3002 - birds

Which of these is NOT part of a feather?

• Barb

• Barbule

• Ramus

• Syrinx

Stage 1 of the Prum evo-devo model for feather evolution looks like a....

• closed vane

• open vane

• tuft of filaments

• single hollow filament

Sinosauropteryx has feathers that preserve....

• keratin

• collagen

• melanosomes

• none of the above

Microraptor was capable of active powered (flapping) flight.

• True

• False

Caudipteryx couldn't fly because...

• its forearms were too short

• its feathers were too short

• its feathers lacked a closed vane

• all of the above

Feathers in Kulindadromeus suggest that....

• all dinosaurs may have had feathers

• only theropods had feathers

• only sauropods had feathers

• none of the above

Feathered dinosaurs shed their skin....

• in flakes

• in large sections

• all in one piece

• none of the above

Pterosaur pycnofibres are....

• dermal collagen fibres

• feathers

• a non-feather structure growing out of the skin

• none of the above

Pterosaurs with feathers suggest feathers may have evolved in the....

• Late Cretaceous

• Early Cretaceous

• Middle Jurassic

• Early Triassic

The reddish headcrest of Anchiornis was probably used for....

• camouflage

• mating displays

• species recognition