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Brookvalichnus
Taxonomy
Synonymy list
Year | Name and author |
---|---|
1970 | Brookvalichnus Webby |
1975 | Brookvalichnus Hantzschel |
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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. †Brookvalichnus Webby 1970
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Diagnosis
Reference | Diagnosis | |
---|---|---|
W. Hantzschel 1975 | Flat ribbonlike structures, sometimes in groups, straight to slightly curving, unbranched, normally inclined 10 to 15o to horizontal, up to 9 cm long, uniform width 3.5 to 4 mm; very thin ribbonlike part exhibits transverse annulations bordered on either side by a thicker structureless layer, consisting of dark shale; structures most likely originated by collapse of tubelike dwelling-burrows. |
Measurements
No measurements are available
No ecological data are available
Collections
No collection or age range data are available