Subclass Holocephali (Noun)
Meaning
Chimaeras and extinct forms.
Classification
Nouns denoting animals.
Examples
- Chimaeras are the only surviving members of the subclass Holocephali, with the extinct forms being more plentiful and varied in the fossil record.
- Several extinct forms of Holocephali have been discovered, including the genus Squaloraja, which had a mix of shark-like and ray-like characteristics.
- The subclass Holocephali is thought to have originated during the Early Devonian period, with many extinct forms being found in fossil deposits from this time.
- Some extinct forms of Holocephali, such as the genus Helicoprion, had unusual spiral-shaped teeth that are still not fully understood.
- The subclass Holocephali is often divided into two main groups: the extinct forms, which are known from fossil remains, and the living chimaeras.