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Ptyctodus
Taxonomy
Ptyctodus was named by Pander (1858) [Sepkoski's age data: D Eife-l C Tour-l Sepkoski's reference number: 521].
It was assigned to Ptyctodontidae by Hay (1902), Jordan (1963) and Denison (1978); and to Ptyctodontida by Woodward (1891) and Sepkoski (2002).
It was assigned to Ptyctodontidae by Hay (1902), Jordan (1963) and Denison (1978); and to Ptyctodontida by Woodward (1891) and Sepkoski (2002).
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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. †Ptyctodus Pander 1858
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†Ptyctodus bradyi Hussakof 1942
†Ptyctodus calceolus Newberry and Worthen 1866
†Ptyctodus compressus Eastman 1898
†Ptyctodus czarnockii Gorizdro-Kulczykka 1934
†Ptyctodus eastmani Weller 1906
†Ptyctodus ferox Eastman 1898
†Ptyctodus howlandi Hussakof and Bryant 1919
†Ptyctodus kielcensis Gorizdro-Kulczykka 1934
†Ptyctodus major Rohon 1895
†Ptyctodus molaris Eastman 1898
†Ptyctodus obliquus Pander 1858
†Ptyctodus panderi Eastman 1898
†Ptyctodus punctatus Eastman 1898
†Ptyctodus reimanni Carter 1942
†Ptyctodus sibericus Tolmachoff 1915
Diagnosis
No diagnoses are available