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Contractenus
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).
It was assigned to Contractenidae by Farsan (1994); and to Tentaculitida by Sepkoski (2002).
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.
G. †Contractenus Ljaschenko 1959
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, uc = unranked clade | |||||
References: Aberhan et al. 2004, Nesnidal et al. 2013 |