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Colostracon (Ovactaeonina)

Gastropoda - Acteoninidae

Taxonomy
Ovactaeonina was named by Cossmann (1895) [Sepkoski's age data: Tr Olen-u K Sn Sepkoski's reference number: 1130].

It was reranked as Actaeonina (Ovactaeonina) by Spath (1947); it was reranked as Colostracon (Ovactaeonina) by Kase (1984).

It was assigned to Actaeonina by Spath (1947); to Colostracon by Kase (1984); and to Cephalaspida by Sepkoski (2002).

Synonymy list
YearName and author
1895Ovactaeonina Cossmann
1947Actaeonina (Ovactaeonina) Spath p. 31
1984Colostracon (Ovactaeonina) Kase p. 169
2002Ovactaeonina Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classGastropodaCuvier 1797
RankNameAuthor
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
superfamilyActeoninoideaCossmann 1895
familyActeoninidae(Pchelincev and Korobkov 1960)
subfamilyActeonininae
genusColostraconHamlin 1884
subgenusOvactaeonina(Cossmann 1895)

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