Below, you see a list with possible ichnogenera for an unlined (sub)horizontal, branched burrow with a winding or meandering morphology and passive filling. Click on them to get detailed descriptions of the ichnogenus and a list of its ichnospecies. (Please allow for pop-up windows):

• Acanthorhaphe
• Belocosmorhaphe
• Oscillorhaphe
• Unisulcus (Taxonomical status unclear, use not recommended; ichnogenus may also occur as surface trace (track, trail, impression, etc.))