From: A giant limulid trackway (Kouphichnium lithographicum) from the lithographic limestones of Cerin (Late Kimmeridgian, France): ethological and environmental implications
Series length (mm)
Right
 SR 1
333
 SR 2
 SR 3
340
 SR 4
347
 SR 5
330
 SR 6
345
 SR 7
 SR 8
344
 SR 9
348
Left
 SL 1
 SL 2
352
 SL 3
 SL 4
 SL 5
353
 SL 6
 SL 7
 SL 8
356
 SL 9
327
Mean
343.7