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Osteostraci

Osteostraci -

Taxonomy
Osteostraci was named as a subclass.

It was reranked as the class Osteostraci by Gadow (1898); it was reranked as the order Osteostraci by Hay (1902) and Dineley and Metcalf (1999); it was synonymized subjectively with Cephalaspidiformes by Long (2011).

It was assigned to Hypostomata by Gadow (1898); to Aspidoganoidei by Hay (1902); to Monorrhina by Obruchev (1964); and to Agnatha by Dineley and Metcalf (1999).

Synonymy list
YearName and author
1898Osteostraci Gadow p. 4
1902Osteostraci Hay p. 340
1964Osteostraci Obruchev p. 106
1999Osteostraci Dineley and Metcalf p. 11

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
RankNameAuthor
subphylumVertebrata
subphylumCraniota
superclassHypostomata
classOsteostraci
classOsteostraci

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.

Diagnosis
No diagnoses are available