Cephalaspidomorphi
Cephalaspidomorphi
Cephalaspidomorphi (pronunciation: sef-uh-las-pi-do-mor-fee) is a group of jawless fish that lived from the Silurian to the Devonian period. The term "Cephalaspidomorphi" is derived from the Greek words "kephale" meaning head, "aspidos" meaning shield, and "morphe" meaning form.
Etymology
The term "Cephalaspidomorphi" is derived from the Greek words "kephale" meaning head, "aspidos" meaning shield, and "morphe" meaning form. This refers to the shield-like head structure that is a characteristic feature of these fish.
Characteristics
Cephalaspidomorphi are characterized by their shield-like head structure, elongated body, and lack of jaws. They are believed to have been bottom dwellers, living in both marine and freshwater environments. They are also known for their unique method of feeding, which involved sucking up small particles of food from the sediment.
Evolution
Cephalaspidomorphi are believed to have evolved from earlier jawless fish during the Silurian period. They are considered to be the ancestors of modern lampreys, although this is a topic of ongoing debate among paleontologists.
Related Terms
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