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Psephodus
Taxonomy
Psephodus was named by Morris and Roberts (1862) [Sepkoski's age data: teeth]. It is not extant. Its type is Cochliodus magnus.
It was assigned to Cochliodontidae by Woodward (1889), Hay (1902) and Jordan (1963); to Holocephali by Sepkoski (2002); and to Psephodontidae by Nelson (2006).
It was assigned to Cochliodontidae by Woodward (1889), Hay (1902) and Jordan (1963); to Holocephali by Sepkoski (2002); and to Psephodontidae by Nelson (2006).
Synonyms
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Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Psephodus Morris and Roberts 1862
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†Psephodus crenulatus Newberry and Worthen 1866
†Psephodus dubius Woodward 1889
†Psephodus latus Saint John and Worthen 1883
†Psephodus levissimus Agassiz 1837
†Psephodus lunulatus Saint John and Worthen 1883
†Psephodus magnus Agassiz 1843
†Psephodus obliquus Saint John and Worthen 1883
†Psephodus placenta Newberry and Worthen 1866
†Psephodus politus Newberry 1897
†Psephodus regularis Saint John and Worthen 1883
†Psephodus reticulatus Saint John and Worthen 1875
†Psephodus salopiensis Woodward 1889
†Psephodus symmetricus Saint John and Worthen 1883
Invalid names: Psephodus depressus Waagen 1880 [nomen vanum], Psephodus indicus Waagen 1880 [nomen vanum]
Diagnosis
No diagnoses are available