I want to know the answer to the following question:
Because of the construction of their shoulder bones, what were the enantiornithes called?
All the background I'm provided with is that "While they were the dominant group of avialans during the Cretaceous period, enantiornithes became extinct along with many other dinosaur groups at the end of the Mesozoic era.". Is that enough to answer the question?
Answer: no