Arthrodira
Arthrodira (arthrodiriformes; class Placodermi) Group or order of fossil (Devonian) fish with a body covered with bony plates, including a heavily armoured head shield, the gills opening between head and body armour.
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Osteostraci , Osteostraci(Cephalaspida; osteostracans; superclass Agnatha) Order of extinct, fish-like, jawless vertebrates, ranging from the Silurian to the Devon… Placodermi , Placodermi Class of archaic, jawed (gnathostome), and heavily armoured fish, which appeared in the Devonian and which were virtually extinct by the e… Heterostraci , Heterostraci (Pteraspida; heterostracans; superclass Agnatha) Oldest known vertebrate order of jawless, heavily armoured fish-like forms, ranging fro… Anglerfishes , Lophiiformes (subclass Actinopterygii, superorder Paracanthopterygii) An order of marine, bottom-dwelling fish that have a relatively large head, wid… 196. Head , head / hed/ • n. 1. the upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the b… Body Image , “Body image” can be considered synonymous with such terms as “body concept” and “body scheme.” Broadly speaking, the term pertains to how the individ…
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Arthrodira