Fig. 4 in Gyrochorte "highways" and their environmental significance in shallow-marine sediments

Fig. 4. Different ichnospecies of Gyrochorte encountered in the Mulichinco Formation, Lower Cretaceous, Puerto Curaco, Neuquén Province, Argentina field photographs). A. Two parallel Gyrochorte comosa Heer, 1865 (black arrows, lower left), one continuing as such (black arrow, upper right), and one diverging from parallel course and becoming Gyrochorte variabilis Fürsich, Alberti, and Pandey, 2017 (shift of causative tube indicated by white arrow). B. Gyrochorte variabilis exhibiting circular, slightly bilobate pads (black arrows). C. Gyrochorte variabilis composed of elongate pads (black arrow) becoming oblique with slight zigzag pattern (white arrow). For details about G. variabilis see Fürsich et al. (2017). All specimens left in the field.