Arthrophycus minimus Mángano, Carmona, Buatois et Muñiz Guinea, 2005

Diagnosis: Narrow (width typically millimetric), long, regularly annulated hypichnial structures displaying intergrading subcircular to squarish cross-section and a ventral median groove, resulting in a bilobate aspect. Individual elements straight or gently curved. Side branches occasionally present, typically emerging at acute angle. Palmate, fan-like structures and scribbling patterns absent.