<classify> Esiane sɛ dinosaur ntakra nni shaft a anyini awie, a yɛfrɛ no rachis, nanso enni ntakra nnoɔma nkae barbɔ ne barbules nhwehwɛmufo kaa sɛ rachis no baa akyire yi wɔ nnoɔma nkae no ho.  <topic>: sciencetechnology 