Order Cyclostomata (Noun)
Meaning
Primitive jawless aquatic vertebrate: lampreys; hagfishes.
Classification
Nouns denoting animals.
Examples
- The class Order Cyclostomata consists of primitive jawless aquatic vertebrates such as lampreys and hagfishes.
- Hagfishes are the only living members of the group Myxini within the order Cyclostomata.
- Order Cyclostomata is often used to classify ancient fish with cyclostome features that lived over 300 million years ago.
- Scientists consider lampreys to be the closest living relatives of gnathostomes within the order Cyclostomata.
- In modern classification systems, the order Cyclostomata is no longer considered valid, having been replaced by Petromyzoniformes and Myxini.