Below, you see a list with possible ichnogenera for an unlined, passively filled, (sub)horizontal, unbranched burrow with a V-shape. Click on them to get detailed descriptions of the ichnogenus and a list of its ichnospecies. (Please allow for pop-up windows):

• Sagittichnus (Ichnogenus may also occur as surface trace (track, trail, impression, etc.))
• Vitichnus