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Cylindricum

Taxonomy
Cylindricum was named by Linck (1949).

It was assigned to Ichnofossils by Hantzschel (1975).

Synonymy list
YearName and author
1949Cylindricum Linck
1975Cylindricum Hantzschel

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RankNameAuthor
Ichnofossils
RankNameAuthor
genusCylindricumLinck 1949

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
ReferenceDiagnosis
W. Hantzschel 1975Plugs (fillings of tubes) shaped like test tubes, rounded at lower end, not pointed, walls smooth; diameter up to 5 cm, up to several cm long; preserved in groups in convex hyporelief oriented perpendicularly to bedding plane.