marginocephalian (noun)

1. During the Late Cretaceous period, marginocephalians like Triceratops roamed the Earth alongside other dinosaurs.

2. In ancient mythology, marginocephalians were often depicted as powerful creatures guarding hidden treasures.

3. The science fiction novel featured a futuristic world where marginocephalians were genetically modified for various purposes.

4. The museum exhibit showcased a beautiful painting of a marginocephalian, capturing its unique features and presence in prehistoric times.