agnathan

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References & Edit History Quick Facts & Related Topics

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lamprey (Petromyzon)

systematic division of Agnatha

phyletic family tree for fishes

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agnathan: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	Agnatha • jawless fish

Photos

lamprey (Petromyzon)

systematic division of Agnatha

phyletic family tree for fishes

See All Images →

Topics

ostracoderm lamprey hagfish cyclostome Anaspida Osteostraci heterostracan Cephalaspis Birkenia Pteraspis reptile bird mammal chondrichthyan amphibian chimaera placoderm spiny shark bony fish eel

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fish: Agnatha: early jawless fishes

Quiz

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List

animal. Amphibian. Frog. Anura. Ranidae. Frog in grass.

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