Below, you see a list with possible ichnogenera for unbranched macrobioerosional traces with a cylindrical morphology. Click on each of them to get detailed descriptions of the ichnogenus and a list of its ichnospecies. (Please allow for pop-up windows):
- Anobichnium
- Carporichnus
- Helicotaphrichnus
- Linckichnus
- Palaeosabella
- Pecinolites (Ichnogenus usually unbranched but may be branched)
- Ramosulcichnus
- Stipitichnus
- Trypanites
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