절경목

절경목(節頸目, Arthrodira)은 고생대 유악어류인 판피어의 한 갈래로, 데본기에 처음 출현해 갑작스럽게 멸종되기까지 약 5,000만 년간 주요 해양 생태적 지위를 차지했다. 판피어강에 속한 목 가운데서 가장 큰 개체들이 속해 있으며, 가짓수 또한 가장 많다.

 하위 과 
 Phlyctaenioidei Miles, 1973
 단흉아목 (Brachythoraci) Gross, 1932
 Williamsaspididae White, 1952
 Groenlandaspididae Obruchev, 1964
 Arctolepididae Heintz, 1937
 Phlyctaeniidae Fowler, 1947
 Actinolepidae Gross, 1940
 Phyllolepida Stensiö 1934
 Wuttagoonaspidae Ritchie 1973
 Genera incertae sedis
 Aethaspis Denison, 1958
 Aleosteus  Johnson et al., 2000
 Anarthraspis Bryant, 1934
 Antarctaspis White, 1968
 Antarctolepis White, 1968
 Aspidichthys Newberry, 1873
 Baringaspis Miles, 1973
 Bryantolepis Denison, 1958
 Callognathus Newberry, 1890
 Copanognathus Hussakof & Bryant, 1920
 Carolowilhelmina Mark-Kurik & Carls, 2002
 Diplognathus Newberry, 1878
 Erikaspis Dupret, Goujet, & Mark-Kurik, 2007
 Eskimaspis Dineley & Yuhai, 1984
 Glyptaspis Newberry, 1890
 Grazosteus Gross, 1958
 Heightingtonaspis White, 1969
 Hollardosteus Lehman, 1956
 Kujdanowiaspis Stensiö, 1942
 Lataspis Strand, 1932
 Laurentaspis Pageau, 1969
 Lehmanosteus Goujet, 1984
 Machaerognathus Hussakof & Bryant, 1919
 Maideria Lelièvre, 1995
 Mediaspis Heintz, 1929
 Murmur (placoderm)|Murmur Whitley, 1951
 Overtonaspis White, 1961
 Phylactaenium Heintz, 1934
 Pinguosteus Long, 1990
 Prescottaspis White, 1961
 Proaethaspis Denison, 1978
 Qataraspis White, 1969
 Sigaspis Goujet, 1973
 Simblaspis Denison, 1958
 Taunaspis Schmidt, 1933
 Timanosteus Obrucheva, 1962
 Trachosteus Newberry, 18903
 Wheathillaspis White, 1961
 Yujiangolepis Wang & Dupret, 2009

 각주 

분류:절경목