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Deltoptychiidae
Taxonomy
Deltoptychiidae was named by Zangerl (1981). It is not extant.
It was assigned to Chimaerina by Zangerl (1981); and to Menaspiformes by Nelson (2006).
It was assigned to Chimaerina by Zangerl (1981); and to Menaspiformes by Nelson (2006).
Subtaxa
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.
Fm. †Deltoptychiidae Zangerl 1981
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G. †Deltoptychius Morris and Roberts 1862
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†Deltoptychius acutus Agassiz 1843
†Deltoptychius expansus Saint John and Worthen 1883
†Deltoptychius gibberuius Davis 1883
†Deltoptychius nitidus Leidy 1857
†Deltoptychius primus Saint John and Worthen 1883
†Deltoptychius varsoviensis Saint John and Worthen 1883
†Deltoptychius wachsmuthi Saint John and Worthen 1883
Diagnosis
No diagnoses are available