Diagnosis. Simple to complex burrow systems lined at least partially with agglutinated pelletoidal sediment (Howard and Frey, 1984; modified by Uchman, 1999).
Ophiomorpha Lundgren, 1891 is diagnosed as“simple to complex burrow systems lined at least partially with agglutinated pelletoidal sediment".
Diagnosis Simple to complex burrow systems distinctly lined with agglutinated pelletoidal sediment.
Classification Preserved mainly as endichnia. Interpreted as dwelling or feeding - dwelling structures of shrimp or shrimplike animals.