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Contractenus

Tentaculitida - Contractenidae

Taxonomy
Contractenus was named by Ljaschenko (1959) [Sepkoski's age data: D Sieg D Eife-u]. It is not extant.

It was assigned to Contractenidae by Farsan (1994); and to Tentaculitida by Sepkoski (2002).

Synonymy list
YearName and author
1959Contractenus Ljaschenko
1994Contractenus Farsan p. 53 figs. Table 9
2002Contractenus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
RankNameAuthor
superphylumLophotrochozoa
Lophophorata
orderTentaculitidaLjaschenko 1955
familyContractenidaeLjaschenko 1973
genusContractenusLjaschenko 1959

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