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

• Arachnostega
• Steinichnus (Taxonomical status unclear, use not recommended; ichnogenus includes ornamented ichnospecies)