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Holcophylloceras costisparsum

Cephalopoda - Phylloceratida - Phylloceratidae

Taxonomy
Holcophylloceras costisparsum was named by Imlay (1964).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1964Holcophylloceras costisparsum Imlay p. B32 figs. Pl 1, figs 1-12,14-17
1969Holcophylloceras costisparsum Westermann p. 40 figs. Pl 8, figs 3a,b; pl 9, figs 1a,b; text-fig 13

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderPhylloceratida(Zittel 1884)
superfamilyPhylloceratoidea(Zittel 1884)
familyPhylloceratidaeZittel 1884
subfamilyCalliphylloceratinaeSpath 1927
genusHolcophyllocerasSpath 1927
speciescostisparsumImlay 1964

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.

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Diagnosis
No diagnoses are available