U-, J-shaped/laminar

Take me to the ichnology start page!

Take me back to the beginning of the determination key!

Take me to the alphabetical list of ichnogenera!

Does your laminar, U- or J-shaped (sub)horizontal, branched burrow have a passive or an active filling?

  1. Passive fill (in case of subrecent traces: NO fill)
  2. Active fill

Take me to the ichnology start page!

Take me back to the beginning of the determination key!

Take me to the alphabetical list of ichnogenera!
[U-, J-shaped/laminar]