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Trichichnus was named by Frey (1970).

It was assigned to Ichnofossils by Hantzschel (1975).

Synonymy list
YearName and author
1970Trichichnus Frey
1975Trichichnus Hantzschel

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genusTrichichnusFrey 1970

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.

W. Hantzschel 1975Threadlike, cylindrical burrows, 10 mm to 35 mm long; diameter less than 1 mm; straight or very slightly curved; branched or unbranched; typically vertical but also inclined to bedding plane or horizontal; with distinct walls, commonly line with diagenetic minerals such as pyrite or rarely calcite.